B12 injections

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I just started my B12 injections (I’ve had 5 out of 6 loading doses so far) and after the first few I started getting these awful tension type headaches that won’t go away along with nausea? I’m unsure if it’s a coincidence or if it’s the injections themselves. I’ve heard many people say that it’s not unusual for things to feel a bit worse before getting better, but I guess I’m just hoping for some reassurance. Or if this is something unusual and different for me to tackle.

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  • Posted

    In all honesty , I never felt any different with any of the injections initially, but did notice that my finger nails stopped shredding ,and are now back to their normal road digging toughness, I do get tired when I am due my three monthly jab. maybe you are stressing yourself ,causing the headaches.So, just  think that the B 12 will do you good. ,which they will.  PROMISE  xx 
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  • Posted

    According to the N.I.C.E guidelines on the treatment of B12/Folate deficiency loading doses should continue "until there is no further improvement"

    It is also important that your Folate level is monitored as this is essential to process the B12 you are having injected

    There is a complex interaction between folic acid, vitamin B12 and iron. A deficiency of one may be "masked" by excess of another so the three must always be in balance.

    Symptoms of a folate deficiency can include:

    symptoms related to anaemia

    reduced sense of taste


    numbness and tingling in the feet and hands

    muscle weakness


    Folic acid works closely with vitamin B12 in making red blood cells and helps iron function properly in the body.

     It is not uncommon for some symptoms to appear to get worse before they get better as the B12 starts repairing the damage done to your nervous system and your brain starts getting multiple messages from parts of the body it had "forgotten about" or lost contact with.

    I sometimes liken it to a badly tuned radio on which you have turned the volume up high trying to catch the programme you want when all of a sudden the signal comes in loud and clear and the blast nearly deafens you.

    A lot will depend on the severity and longevity of your B12 deficiency as to how long before there is no further improvement or recovery. Some symptoms will "disappear" quite quickly whereas others may take months or even years. There is no set timescale as we are all different.

    If you can get to see a doctor please also ask him/her to check your Folate level.

    I am not a medically trained person but I've had P.A. (a form of B12 deficiency) for more than 45 years.

    I wish you well  

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  • Posted

    Thank you both for your replies, I will speak to my doctor. I talked to tammy nurse who issues the injections but she didn’t seem to know anything really. 
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    • Posted

      Just a further piece of advice for you .DO keep up the .thee monthly injections.. Buy yourself a diary and forward mark when you are due ,I usually put a reminder in a week before it is due ,to ring up and book it

      Your headaches are just tension .Like a clock that has been over wound.you will be fine ...cheesygrin

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