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B12 Issues

37 replies

Ceriane · 05/04/2026 15:49

In 2011 I was diagnosed with a B12 deficiency after a year or so of chronic fatigue along with dizziness, brain fog, pins and needles in hands and feet and sore lips/tongue. My B12 level was 154. I was given loading doses and felt fantastic for almost 3 months. I was in my late twenties at the time. I had 3 monthly injections but would really be struggling towards the end of the three months.

They then took my injections off me, said I didn’t need them as they are only for people who can’t absorb B12 and they couldn’t prove that I can’t absorb it, despite the fact that without injections my symptoms come back. Nothing I said would persuade them to put me back on them.

I tried B12 tablets, even patches, nothing helped.

After researching online I read that a lot of people were having similar problems and many people self inject. This is not a decision I took lightly. After speaking with someone from the pernicious anaemia society I began ordering online and self injecting every other day until I felt better. It took a while to get my levels right but I found once a fortnight worked really well for me, I continued to do this for several years, I felt great and never looked back.

I was advised by my GP to stop self injecting, in fact they made me feel like I was injecting crack cocaine and that I was doing something really stupid. I stopped the injections thinking if the drs don’t think I need them then maybe I don’t. After six months I after stopping injecting the symptoms returned. Out of desperation I went back to self injecting and this cycle continued for a while I would stop injecting go back to it and then find I had symptoms from having too much at once after a long break.

Eventually I got back on an even keel with fortnightly injections and felt well for several more years.

I came off it again recently and now I’m scared to inject as last time I was told your potassium levels can drop, so I drank a LOT of coconut water which is high In potassium thinking it would help and my potassium actually went to a dangerously high level and I became seriously I’ll from that. That was a few weeks ago.

The problem I’m having now is SEVERE fatigue and I’m scared to go back on B12 even though it’s the only thing that helps and my GP can’t help me as once you’ve injected your levels remain high in a blood test regardless of symptoms and they don’t approve of me self injecting so I just don’t know what to do.

I also can’t explain to people why I’m sometimes really not well and unable to do things, as B12 deficiency sounds trivial (even though I am EXTREMELY debilitated by this) and they just think you can just have B12 and be cured, it’s much more complicated than that. I have a friend who goes on and on at me about the fact I haven’t had kids but the reason is because it could be dangerous with all of this going on, but she doesn’t seem to understand that.

This is ruining my life! Does anyone else have experience of this?

OP posts:
LittleGreenDragons · 06/04/2026 12:20

TheOnlyLivingBoyInNewCross · 06/04/2026 06:54

I have been deficient in B12 and Vitamin D but fortunately, even though my absorption test was inconclusive, my GP has let me stay on the B12 injections. My ferritin level is 29 though which apparently, according to my GP, is fine and no further action needed 🤨 I’m guessing that’s not the case 🤔

That's "fine" according to NHS/NICE rules which is based more on money than actual health nowadays. If your hair isn't healthy until you reach 60-70 then anything under really isn't fine in my book.

Europe and America have different levels to our NHS and (I think) they treat anyone under 30 as very deficient. Not slightly or borderline but very.

Ceriane · 06/04/2026 18:39

Thank you. I am on health unlocked as well. I didn’t realise 22 was that low.

My symptoms are severe fatigue, brain fog, dizziness, sore tongue, breathlessness, racing mind, pins and needles in hands and feet.

I don’t even know how to explain to people what’s wrong with me.

OP posts:
KatyMac · 06/04/2026 18:51

Id get your thyroid checked too

Ceriane · 06/04/2026 18:54

Thank you. Everything is within range. I just feel horrendously tired.

OP posts:
KatyMac · 06/04/2026 19:56

It's so pants isnt it

Everything is in range; get diagnosed with CFS
Everything is in range; get diagnosed with IBS
Everything is in range; get diagnosed with depression
Everything is in range; get diagnosed with fibromyalgia
Everything is nearly in range; get diagnosed with B12, then zinc, then D deficiency
Everything is in range; get diagnosed with peri menopause then endometriosis
Everything is nearly in range; get diagnosed with hypothyroidism

And im still tired

It's never ending

Ikeameatballlunch · 06/04/2026 20:22

I remember you started thyroxine Katy - how are you? (I probably spoke to you with a different username)

KatyMac · 06/04/2026 20:39

For a good while I was better than I'd been but since about November I've been on a downturn

It's like we fix a leak and another one springs up draining me; we fix a symptoms, correct a blood test imbalance and something else appears

Sorry for intruding @Ceriane

Strangerthanfictions · 06/04/2026 21:06

Choux · 05/04/2026 16:46

Always in April makes me think of Vit D. What are your most recent levels of everything you have been tested for in the last 12 months?

were you anaemic based on your haemaglobin levels or your ferritin levels?

Edited

Exactly what I was going to say, the NHS plays down low vitamin D symptoms including setting a lower limit that can actually be pretty symptomatic, I ended up in a terrible state with low vitamin D a few years ago, I've gotten myself low again this year which was stupid and I can feel the symptoms but it should be back up soon.

Ceriane · 06/04/2026 21:49

@KatyMac I hear you…. been through the whole carousel over the years.

I think my 4 main issues are: I went over the top with potassium and it went dangerously high…on its way down now.
Iron levels are way too low…..will go back on iron tablets
Vitamin D in spring….I take a high dose supplement all year round…….this always sorted itself once I get more sunlight
B12…..haven’t got a scoobies how often I need injections or if I just need spray/patches…..not sure how to figure this one out and know that GPS can’t help me because of the false high reading…..maybe active B12 test.

This is alll so hard and rubbish and debilitating!

OP posts:
Ivyy · 07/04/2026 14:35

I find this group on FB really helpful for info and advice op, they have templates for letters to GP’s about not stopping b12 injections / asking to reinstate injections after being stopped. Although I’d also say your ferritin is very low, off the top of my head anything under 30 is iron deficiency, 60 is optimal and 100 needed for hair growth. I can’t get mine up despite trying various tablets and am considering using savings to pay for an iron infusion due to feeling so unwell for so long

Ceriane · 07/04/2026 19:12

Thank you

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