Pfizer vaccine and B12?: I had my first... - Pernicious Anaemi...

Pernicious Anaemia Society

32,623 members•23,983 posts

Pfizer vaccine and B12?

4 years ago•8 Replies

I had my first vaccination with the Pfizer vaccine a week ago. Had my B12 injection the day before.Got some side effects from the info list including fatgue, plus brain fog and "the B12 sighs"that were the same as I experience when B12 injection is due for my PA. All other side effects are gone, but fatigue, brain fog, and sighs continue. Does any thing about this vaccine affect B12 levels or effectiveness? My doc says no, but it's not her area of expertise.

Written by

lindajanes

To view profiles and participate in discussions please or .

Read more about...

The ability to reply to this post has been turned off.

8 Replies

•

Nackapan4 years ago

O dont think anyone actually knows. I think if you ard fatigued anyway the injection could possibly add to it for a few days?

lindajanes• in reply toNackapan4 years ago

Thanks for the reply! You're probably right that no one knows yet. Still, it seems like I shouldn't continue to feel low on B12 when I just got my B12 injection.

Nackapan• in reply tolindajanes4 years ago

I think even if yiuve just had your b12 injection and other stuff going on you will feel 'knocked off' for a few days. Like i say it's been reported it can make you more tired for a while .

Your body is busy producing antibodies.

Can take 2 weeks fir any protection.

I've not had one yet . Just what people have told me and I've read

fbirder4 years ago

No. There is no way I can even imagine that the BioNTech vaccine can affect B12.

Nor have I heard of 'the sighs' and brain fog being side effects of the vaccine.

lindajanes• in reply tofbirder4 years ago

Thanks! I appreciate the reply.

Sgboyd4 years ago

The Pfizer vaccine doesnt react as far as I know and understanding its components it shouldn't. I do know after tye second one all my B12 symptoms increased exponentially, to the point of tears from the pain, but it resolved within 24 hours. The second shot is when your body kicks in antibodies the hardest and goes into fight mode, so even without a deficiency I could have felt that way.

lindajanes• in reply toSgboyd4 years ago

Your answer helps. Thanks! Once I turned 70, I started experiencing the side effects to everything. Given you're experience, then it's no surprise I got some with the first injection. The second will no doubt produce worse. But, hey...no Vivid, and that's worth it.