Unusual exercise-induced insomnia

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TL;DR: I have exercise-induced insomnia for which no one has been able to explain or provide a solution.

I used to exercise regularly. I would wake up every weekday at 6am, bike to the gym, and exercise for about an hour before work. I would usually jog or do some other cardio for 20-30 minutes, then do weight training for the rest of the hour. I had help from a personal trainer, so I knew what I was doing.

I felt great, and I was in the best shape of my life. I kept this up for about 3 years, before something strange happened: I would wake up around 2 or 3am, unable to fall back asleep. I was 33 at the time, and I know sleep patterns can begin to change around this age.

At first, I noticed that I slept much deeper on days I didn't exercise (e.g. weekends). Then I began waking up in the middle of the night, but would usually go right back to sleep. It got worse. Eventually, I would wake about 4 hours after falling asleep with a feeling like an intense adrenaline rush or panic. It would last about an hour, and I would have poor, restless sleep the rest of the night.

I did not have trouble falling asleep. I was in bed at 9:30pm every night, then would read a bit with lights out by 10pm. I would fall asleep within 10 minutes.

When this started happening, I adjusted my routine. I worked out during lunch, or in the evening. No change.

I tried doing more or less cardio vs weight training. No change.

Today, if I exercise at any point during the day, I will only get four hours of good quality sleep.

I've been to several doctors, sleep specialists, and neurologists. I've had multiple take home sleep studies, as well as one on-site at a medical institution. The only thing they've been able to confirm is that I do indeed wake after 4 hours if I have exercised, but no one can tell me why. Many doctors don't even believe my story -- they think it must be psychological stress that I insist on tying to a physical cause.

I have found that walking, low-intensity biking, and hiking are all acceptable forms of exercise that do not trigger my insomnia. I can hike 10 miles and be fine. But if the hike is over very steep terrain, or if I were to jog for 10 minutes, then I have insomnia. So the intensity is definitely a factor.

The sleep studies did reveal that I have very mild sleep apnea. My doctors have told me that normally it would not warrant treatment, but it could be related. However, the usual recommendation for such a mild form is simlply "get more exercise".

My current pet theory is this: following a day of excerise, one's muscles will repair themselves during sleep, usually around 3 or 4 hours into the night. This process requires oxygen from the blood, so if my sleep apnea lowers my blood oxygen levels, then the repair process might cause it to dip below some threshold; my body panics, sending adrenaline through my body to wake me up to address whatever is happening. However, my sleep studies showed my blood oxygenation stayed over 90% the entire night.

I'm currently trying out a CPAP treatment. I'm still adjusting to it, but so far it hasn't made any difference. There's no real reason to think that it will, but I'm willing to try anything at this point.

When I tell this story, most doctors look at me like I have three heads, so I thought I would seek the collective wisdom of the Internet.

Cheers!

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  • Edited

    I too have exercise induced insomnia. It started at around the age of 40, before then I had no problems, I could do strenuous badminton or cycling without problem.

    Now if I do anything more than a gentle 10 minute run I'll be risking not getting any sleep.

    Its like my body remains in a hyper adrenaline fueled state for a day after exercise. If I do strenuous exercise I can go to bed maybe feeling reasonable ok, and I might even fall asleep, but then I'll wake up after an hour or so feeling extremely hot and bothered and a kinda sick feeling in my throat/stomach. Best I can describe it is my body remains hyper after exercise, not in a relaxed and calm state for sleeping, takes a day or 2 to revert to normal, I can physically feel the difference.

    I battled with this for years I tried every possible solution under the sun, even went to a private endocrinologist to get my bloods tested etc. There is no solution, I've given up the battle now, have to content myself with more gentle forms of exercise, hiking for example.

  • Edited

    I started having post workout insomnia after I went overboard with my yoga breathing exercise. My condition is peculiar in the way that -

    1. My insomnia only triggers if I do any exercise which puts direct pressure on my stomach ( crunches, pushups etc.) I can do biceps, triceps all day with no repercussions.
    2. It doesn't matter what time I do the exercise, early morning, afternoon, evening, I wake up nonetheless.
    3. Upon waking up, I don't feel any adrenaline rush or sweats. I just wake up.

    I had given up working out for around 5-6 years (from 2015), recently I decided to try to face my condition and see where I end up. Been exercising alternate days , when I wake up I down a 2mg melatonin pill and am able to go back to sleep. Upon waking up in the morning I wouldn't say I feel a 100%, but it's much better than not sleeping at all.

    Not sure how safe it is to be taking 2mg melatonin over the longer term.

    On the days that I do exercise I feel a sensation above my eyebrows (left eyebrow) as if it's inflamed or something. I had gotten a CT stomach done but nothing came up.

    I wish I had a solution to offer but that's all I have.

  • Edited

    I wonder if it links to adrenalin hanging around in the body.

  • Posted

    Glad to find you here fellows. I face exactly the same problem of you all from more than 10 years. Im now trying an sports doctor in Brazil to see what suggestion he can bring for me. So far, Drs really did not consider my hypotesis but I wont give this up and carry on my research. Thank you a lot for the posts. Regards,

  • Edited

    Thankyou so much for starting this thread, with over 200 replies here would it be worth asking some CFS and OTS specialists to take a look at it and give some overall advice? The hardest thing about this is not having the guidance or a proper diagnosis.

    Cliff notes to my story:

    • Im 37/m/UK, fit boxer, heavy set with no sleeping issues prior to March 2019
    • Got covid during first lockdown
    • Doctor prescribed 2 weeks of antibiotics, got bad oral thrush
    • Didnt sleep for 5 days and had severe panic attack.
    • Continued running after recovery, took Nytol, slept fine for a month
    • Started missing whole nights sleep every 2 weeks, no signs of physical/mental stress
    • Missing whole nights became more regular, got made redundant, moved in with parents
    • Took Zopiclone, didnt work and made depression symptoms unbearable
    • Took Mirtazapine 15mg, then 30mg and finally 45mg (max)
    • Insomnia still bad every 3 or 4 nights, heart palpitations at night
    • Started hard boxing training an hour a day
    • Sleep improved but missing whole nights every 1 or 2 weeks
    • Realised training was related to insomnia, stopped training.
    • Sleep improved massively for 2 months with only 2-3 bad nights
    • Weaned off Mirtazapine, sleep, anxiety + went crazy bad.
    • Started 10mg Amyltryptaline, sleep improved with the odd bad night but now sleeping by 3am at worst
    • Began walking 30mins a day, then 60 mins month after
    • Started 1.5hours walking a day and stopped Amyltryptaline
    • Sleep has been terrible for a month and crying most days from the lack of help and guidance

    My backstory: Im now 37, have always had an undiagnosed anxiety issue but found sport, meditation and mindfulness almost completely eleviated it, but I never had issue with insomnia. I started getting very fit about 10 years ago when I started running and Thai boxing, but have always been on the heavier side 100-115kg. For many years 4-6 hours of training a day was not a problem. In 2019 I let myself go quite a bit while I worked, got married etc. but still kept up some running and occasional boxing class. My chronic insomnia began when I caught Covid in March 2019.

    Covid: My wife had it first, then I caught it but it subsided within 4-5 days. I stupidly did 30 mins of boxing training that day in my lounge and that night I woke up with breathing issues. My doctor put me on 2 weeks of antibiotics and this gave me bad oral thrush which I still have mildly a year later! After this I didn't sleep for 5 days, whatever Nytol or meditating I did I could not fall asleep. By day 5 I completely lost my mind and resulted in a massive panic-attack on day 5 as doctors would not prescribe me anything, and no ambulances would pick me up for breathing problems or mental issues.

    Insomnia: I slept on day 5 and as I had to work soon after I decided to use a Nytol every night for a month. That month I slept 8 hours every night and felt totally recovered so began to run 3 miles every day. Then one day I stayed awake all night, no anxiety/sweats/physical issues at all. Then 2.5 weeks later same again. Then a week later, then days later. Unfortunately at the same time I was made redundant and by this point my sleeping was almost non-existent. A doctor finally prescribed me Zopiclone, but this did not work and turned my condition into sever depression where I was barely speaking and in constant mental/physical agony.

    I changed doctors when I had to move and was prescribed Mirtazapine, after a few days my sleeping got better, I started running and boxing again and then the same pattern happened. 2.5 week of blissful sleep feeling great, followed by a whole night awake. So my dose increased from 15mg, to 30mg, to 45mg. While on the Mirtazapine I did notice heart palpitations at night and the feeling like my heart stopped in a panic occasionally.

    My training was very good, I was getting faster/stronger but would it a wall of feeling sluggish which I put down to the Mirtazapine at the time.

    It took 3-4 months before I twigged that my 1 hour running/boxing may be causing this insomnia and stopped it dead, and in Jan/Feb 2020 I had mb 2-3 nights of bad insomnia.

    The random fortnightly/weekly insomina was still there but I felt better and needed to get back to working so I weaned off of the Mirtazapine over a month, and to my surprise my sleep got increasingly worse, and coming off the meds completely left me with the similar depression symptoms (Nausea, stopped eating, random sweating, panic feeling). Since then I have been on 10mg Amyltryptaline to stop the tension headaches.

    I found this thread and decided to do a month of walking 30mins a day, then 60mins a day to raise my activity slowly. By May the insomnia felt manageable so I upped to 1.5 hours walking a day and stopped the Amyltrypaline. Almost instantly my insomnia came back severely and has been worse than ever for a month now, so I am resting for a few weeks and back on the Amyltyptaline.

    From the replies in this thread it looks like Mirtazapine is helping a lot. Wish you all the best of luck, it's very hard when no-one understands what you are going through, especially when it's your doctor, so keep updating this thread.

    • Edited

      Just wanted to add some experiences I found surprising that may be helpful:

      • Even though I was in a good stated of mind and sleeping relatively well for a few months, coming off the Mirtazapine (45mg) over the span of a month gave me bad insomnia lasting for about a month after my last dose of 7.5mg, as well as bad bouts of physical anxiety/depression symptoms. Also coming straight off Amyltripaline 10mg gave me bad insomnia/depression for about a month. In hindsight I should have stayed on these longer and tapered off a lot slower. One of my GPs recommended tapering Mirtazapine over 3 months instead.

      • Since buying a fitbit band (£30) and setting the heartrate tracking on constant, I've been really surprised how often my heartrate exceeds 100bpm during normal activity like walking/shopping/carrying something, even though my resting HR is about 60-70bpm. My theory is that as my good sleep comes back for 1-2 weeks, I start doing more things and with a spring in my step and this keeps the cycle of flare-ups going.

      • Weight seems to be an issue with a lot of posters, I will try my best to bring my weight down from 110kg and see if this affects HR, and thus maybe improve my situation.

    • Posted

      Hi road01001, I'm seeing very big improvements now, it has been nearly a month since my last sleeping issue and I am walking a lot, running 1.5 miles once a week, and hoping to build this up to boxing training again soon.

      I have continued on 15mg Mirtazapine daily, but also because my insomnia was so intermittent I was able to start using Nitrazapan to knock me out (this was crucial to me being able to work again). A few months ago I was using it around 1-2 times a week but haven't needed one for a month now.

      It has taken around 2 years of rest, Mirtazapine and possibly Nitrazan giving me some consistent sleep, to start seeing improvements. Hopefully things continue to go in the right direction.

      If you do start seeing improvements, make sure you come back here to let people know!

  • Posted

    I was searching google yet again for a reason for my terrible insomnia and at last ive found others with the same problem. It just helps to know (as i always did) its not a mental condition as my doctor have said!

    i love my training & lifting weights makes me insanely happy but i have had to forfeit my sleep. Im a 51 female & have always loved to train but i honestly have not had a full nights sleep for about 30 years. im luck if i get 3 hours! i dont train every day I eat well I keep hydrated and have a non stressful life. I also only train in the mornings. Ive had every test going & nothing is wrong? I cant imagine a life without training so im just accepting my fate.

    To add Ive tried dramatically lowering my weights to experiment & i only train for an hour or so .. its still the same!

  • Posted

    I'm experiencing the same thing. This happens every time I start strength training again. I can walk, but within 3-4 weeks of lifting, I wake up 2 hours, then the time awake increases if I keep lifting.

    I also was told I have a mild apnea. I wondered if it has to do with the muscles around the neck tightening and making apnea worse. I'm just guessing though. In the past I participated in triathalons and 150 mile bike-a-thons. I hope this isn't a permanent thing...

  • Posted

    i had the same problem... i was addicted to nicotine! worked out like an athlete.... had huge trouble sleeping ...took cough syrup to sleep

    in 2017 quit nicotine and it was dow hill.. my resting heart beat was around 50's. a single workout gave me inflammation and very bad sleep

    i started taking nicotine through patches and its seems it has kickstarted my engine... higher BPM resting though

  • Posted

    Hi everyone! I'm in the same boat.

    Basically, I've been overtraining for quite a while now. It all started around a couple of years ago or even earlier. I would do lots of outdoor workout sessions, such as different variations of pull-ups, push-ups, Bulgarian split squads, etc, as well as dumbbell and barbell workouts at home. I performed those almost every day, usually before breakfast, for 30-45 minutes, even though my results weren't always noticeable, and my sleep suffered from time to time. Gradually, it became worse, with me waking up every couple of hours unable to go right back to sleep. Also, my heart rate would be elevated for an hour or two after each session, and anxiety and emotional issues also started to manifest themselves. Should I have stopped right then and there? Of course, but I didn't 😉

    Fast-forward to the late fall of 2020, and one such workout was particularly "memorable" - I became extremely exhausted, a bit dizzy, and seemed to lose the sense of time. I could not even remember getting home from the park where the workout had taken place 😃) Later that day I felt fine, bit decided to take a break as my WBC count on the full blood panel had been low for a while by that time, with doctors not being able to pinpoint the cause.

    My health issues were on the rise, however. Enter insomnia, GI disturbances, and mood swings. I rested for two full months but didn't feel a lot of improvement. Now I tend to think it may be due to the fact I continued to take an hour-long walk every morning instead of a habitual workout, and several shorter walks in the afternoon and evening.

    My current situation is as follows: WBC is low from time to time, especially lymphocytes, although not as far below the lower range as it used to be; GI issues persist, my Free T4 and Free T3 are on the low end or slightly below, my total testosterone is in the middle range, my free testosterone is on the low end. Most endocrinologists don't see that as a huge issue, though, and tell me I'm completely fine.

    However, I seem to get wired even after mild exertion, such as an hour-and-a-half walk or a ride on the bicycle. A couple of sets of push-ups or pull-ups will bring the symptoms back, I will be irritable, anxious and then insomnia hits with a vengeance.

    Do you think I should completely rest for some time, not doing ANY physical activity apart from very short and mild walks? Does it really get better with time? I eat enough calories, don't drink caffeinated beverages, my weight is normal, and I don't have lots of daily stress.

    I really look forward to your reply, thanks!

    • Posted

      WBC is low from time to time, especially lymphocytes,

      This really strikes a cord with me. As well as the many issues i have had (documented here) , this is one thing that has been consisting in my bloodwork since overtraining 9 years ago. Dr even sent me to a cancer specialist to get to the bottom if it. No answers though

    • Edited

      Hi! Could you please elaborate on your numbers? Mine WBC has been hovering around 3.5 - 4 for the most part, the lowest being 2.77-2.85 last year. Sometimes it gets as high as 4.5, which is pretty good for me. Lymphocytes are now around 1000-1200 in most tests. They were 700 in my lowest results - yes, I do total blood count tests pretty often 😃)

      I've also been sent to hematologists with no apparent results - they say it's not caused by any blood condition and tell me to continue digging in other areas. The last one told to actually monitor the number of neutrophils as lymphocytopenia is not an often seen condition, and my numbers are still not low enough to be a cause for concern. I've been tested for HIV, and a number of other conditions.

      It is well-known that stress/cortisol can lower the total lymphocyte count (I've seen a paper where they established that through testing students during academic examination sessions, which is a highly stressful condition). I can send you this if you'd like to see for yourself.

      Yesterday I went for a 2-hour walk with my GF, and today I'm fully before dawn being unable to go back to sleep, not feeling extremely terrible but noticeable wired. I was smart enough to collect my saliva in a cortisol tube before going to sleep and will take the kit to the lab today. My morning cortisol has been high in at least 3 tests.

      As far as my other symptoms go, my body temperature feels very low, dry skin, mood swings and still there. Also, when this whole overtraining thing started, my brain seems to have rewired itself and come to like catchy songs - they now always play incessantly in my head somewhere in the background 😃) Go figure.

    • Posted

      That surely looks pretty familiar to me.

      Also, those numbers can change on a day-to-day basis and even during the day. When I first received my WBC=2.77 I first freaked out and did another test the next morning = WBC=3.62, lymphocytes = 950.

      Some time ago I decided to do the test after a long period of not doing any and received pretty amazing results:

      WBC-5.2, lymph=1500, neutrophils=3200

      However, I decided to do a more full panel that same day at the same lab, including erythrocytes sedimentation rate, etc. That same f#ing day at the same f#ing lab, yes 😃) I was pretty worried waiting for the first results and walked a bit before the second one.

      Results:

      WBC=3.9, lymph=900, neutrophils=2800

      So those numbers are very acutely affected by any stress or what your body perceives as such.

      All in all, my hematologist's recommendations are as follows: total neutrophils <1500, or total lymphocytes < 800, go to the doctor and do total blood count per their recommended frequency (usually, once in 3 months).

      Has your numbers been like this for quite a while? Do you continue to exercise and have symptoms? Could you please describe exactly how your overtraining happened?

      In my case, it seems like even cleaning my apartment sets me into the slightly agitated state of increased stress response. Thanks!

    • Posted

      I have given up on exercise except for walking. Its been over 8 years since i had to stop training. I have copied my post from 3 years ago to describe what happened. My WBC has never recovered

      Wow, over the past 5 years I thought I had been to the end of the internet and back and never did find anyone with similar symptoms, until now.

      All your stories and symptoms are almost exactly the same as mine. My started 5 years ago with what appears to have been caused by severe overtraining. I was winning bike races one day and then could barely turn the pedals the next day. Severe insomnia, chest pains, very low T, messed up cortisol curve etc.

      i have seen several specialists and have even travelled to Colorado to meet with a sports doctor who specializes in OT recovery. He reviewed all my blood work from the past 5 years and could identify where my problems started. He could not see anything to cause my insomnia and thought it was all mental. He prescribed me high volume, very low intensity riding, with HR less than 115.

      Even at this low intensity, my sleep is terrible. Walking for hours is no problem, but any activity, yard work etc, that elevates my HR over one hundred, causes my HR to remain higher for the rest of the day. When I try to sleep, I feel hot and fall asleep for a couple of hours then wake every half hour or so.

      I truely believe that my body is reacting to the stress of exercise and flooding my body with hormones or chemicals.

    • Posted

      Thanks! You mentioned you cortisol levels - could you please specify the exact numbers? Did you measure blood or saliva cortisol, morning/evening? Also, testosterone, etc. Are they normal now?

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