synthroid and Fast Heart Rate

Posted , 3 users are following.

This discussion has been locked due to a period of inactivity. Start a new discussion

Hi I posted a few weeks back but no one ever answered me. sad I'm on synthroid 75mcg and my numbers are all on the low end of the normal range. I was diagnosed a year ago. Unfortunately my heart rate is quite fast and this is only since the synthroid and I also have anxiety/panic attacks off the chain. Anyone else have this problem?

0 likes, 7 replies

Report

7 Replies

  • Posted

    Could you explain what you mean by low end. Do you have the numbers to share here? What do you mean by off the chain?
    Report
    • Posted

      Hi Dave! Thanks for your response. My Free T4 is 1.32 which is at the higher end of normal. my Free T3 is 2.63 which is right in the middle of normal. My Total T3 is 109, and my TSH is 0.619. I believe this forum is English and my numbers are American. Is this true? Anyway, also and I apologize. Off the chain, means out of control. I'm having terrible panic attacks where I feel like I can't breathe, and have to go to the ER. I hate to think I have to take anti-anxiety meds due to the side effects from the synthroid. 

      Report
    • Posted

      What other symptoms do you have. The Classic symptoms of hypo,are tiredness and brain fog. IF you don’t have those then you may be over medicated
      Report
    • Posted

      Hi Dave, I'm not tired anymore now that I am on medication, but I have wondered if I am being overmedicated. Ironically my hands and feet are always freezing though. It seems like the anxiety, and fast heart rate are a function of over medication, while the cold hands and feet are from too little. I'm going to see a functional doctor soon so hopefully I will get this all sorted out. Thanks for your help!

       

      Report
    • Posted

      Hey bc, glad to help. Your TSH is a bit low so indeed the over-medicated suspicion is a possibility.

      By all means see the Functional Medecine doctor but exercise caution and check their actual qualifications. I have looked into Functional Medecine, hence this advice. 

      Report
  • Posted

    Hi there, i am new to the post but have had hypothyroidism for 14 years and was steady on the same dose for 10 years. THe last few years my dr has had to make adjustments and I want to say in the past two years I started to feel anxiety constantly and feeling a fast heart rate, i just found out that my levels are off again after adjusting me last year t0 137 she is now bumping me to 175. I was on Levothyroxine and she switched me last year to synthroid stating sometime Levo being generic doesn't give you the constant dose you need (can vary) and suggested to go on the brand instead of the generic version of the meds. I can't remember if my anxiety got worse with the change in the meds (it seems like its been constant).  I have always has low blood pressure and the last few years with the change in dose its gone up I been around 105/68 and this past check up was at 132/75 this is also when she told me my levels are off again and upping my dose. My point is I am not sure if it got worse because my levels are off or because the higher dose of medicine and it may get worse now that she bumped me to 175 mcg. I just posted a similar topic on the subject. I guess I will see after two months on the new meds what she says and if I should consider going to a specialist rather than my general dr for treatment. 

    I was not worried about it for 10 years but now as each year goes by and my meds change and I feel worse anxiety I am wondering now if its related especially reading some of the other posts. I asked her why it keeps changing she said as you get older your glands quit producing the hormone until at some point they quit all together and you rely on just he meds to keep you going. She said she has some patients she is constantly fluctuating the medicine trying to regulate them, this is not a fun condition to have it really messes with the body unfortunately in my case it is hereditary from my mother, aunts to both my sisters we all have it.   

    Report
    • Posted

      Hmmmm, my numbers are all in the normal range though. My TSH is so low that if I go any higher than the 75mcg my numbers would put me in the hyper range. I feel like the anxiety and fast heart rate are a side effect of the synthroid. Also, I WAS on levothyroxine and my Dr. agrees with yours and so put me on the name brand . Ironically, I feel better when my TSH is in the higher range but then I start to get a goiter. I always know when my thyroid is off because it starts to swell.
      Report

Join this discussion or start a new one?

New discussion

Report as inappropriate

Thanks for your help!

We want the forums to be a useful resource for our users but it is important to remember that the forums are not moderated or reviewed by doctors and so you should not rely on opinions or advice given by other users in respect of any healthcare matters. Always speak to your doctor before acting and in cases of emergency seek appropriate medical assistance immediately. Use of the forums is subject to our Terms of Use and Privacy Policy and steps will be taken to remove posts identified as being in breach of those terms.

newnav-down newnav-up