Vit B12 too high?!!: Just had my... - Pernicious Anaemi...

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Vit B12 too high?!!

PolyannaYorkshire profile image

Just had my vitamin B12 blood test results back and and it's way over what it should be apparently 2000 ng(200-900) could this be causing my double visionand balance problems. My GP is not going to be very happy with me supplementing my vitamin B12. I understood you can't take too much B12 ... and my grandmother died of pernicious anaemia hence my taking the B12 drops as I didn't feel well at all she also had thyroid problems like me.

I would appreciate any comments on the 2000 reading. Thanks!!

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41 Replies
Pickle500 profile image
Pickle500

No, you cannot overdose so high B12 will not cause unpleasant symptoms. What your body will probably do is flare up latent problems so it can heal them.

What's the backstory? Do you know why you're deficient?

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Pickle500

My grandmother had PA (&died as a result) I had the symptoms of low B12 so started a spray supplement and now way over the limit!!

Pickle500 profile image
Pickle500 in reply to PolyannaYorkshire

What were your symptoms and when did they start?

For how long have you been taking the supplements?

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Pickle500

Extreme tiredness. muscle weakness. loss of balance. brain fog. double vision. Sleep difficulties2-5hrs/night!!short of breath. constipation. Funny feeling in toes...also hypothyroid

Pickle500 profile image
Pickle500 in reply to PolyannaYorkshire

How long have you been taking the drops and how much have you taken?

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Pickle500

Betteryou. Boost vit b12 daily oral spray.1200ug methylcobalanin/ day I've used them for..a few years now

shaws profile image
shaws in reply to PolyannaYorkshire

I doubt that a B12 spray will produce sufficient B12 for your body (I am not medically qualified).

I have P.A and my mother also had P.A. and had regular B12 injections but she died due to her GP who withdrew it and told her that she no longer needed B12 injections as her bloods were fine.

Due to GPs advice my mother developed stomach cancer and died.

I believe if someone has Pernicious Anaemia they MUST have regular B12 injections.

Savanahrai profile image
Savanahrai in reply to PolyannaYorkshire

Hi I'm not short of B12 but decided to inject myself as I was always tired when I had a routine blood test I too was over 2000 . My doctor asked me if I took supplements for B12 and I told him I inject . He told me it wouldnt harm me but would I just go without injecting for 2 month xx

shaws profile image
shaws in reply to Savanahrai

That's good that it wont harm.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Savanahrai

he sounds an understanding GP thank you for your help

Sleepybunny profile image
Sleepybunny

Hi,

Apologies for a quick reply as busy cooking.

Treatment with high dose vitamin B12 been shown to be safe for more than 50 years

stichtingb12tekort.nl/engli...

Misconceptions about a B12 deficiency

(From Dutch B12 website - units, ref ranges, treatment patterns may vary from UK)

stichtingb12tekort.nl/engli...

Diagnosis and Treatment Pitfalls

(From B12 Institute in Netherlands - units, ref ranges, treatment patterns may vary from UK)

b12-institute.nl/en/diagnos...

B12 article from Mayo Clinic in US

The Many Faces of Cobalamin (Vitamin B12) Deficiency

ncbi.nlm.nih.gov/pmc/articl...

Table 1 in above article is about frequent misconceptions about B12 deficiency that health professionals may have.

There may be some useful info in threads below.

Links to forum threads where I left detailed replies with lots of B12 deficiency info eg causes and symptoms, UK B12 documents, B12 books, B12 websites and B12 articles and a few hints on dealing with unhelpful GPs.

Some links may have details that could be upsetting.

Some of the info will be specific to UK.

healthunlocked.com/pasoc/po...

healthunlocked.com/pasoc/po...

healthunlocked.com/pasoc/po...

Next link is to a thread about Patient Safety, has lots of useful links for those who've had difficult health experiences.

healthunlocked.com/pasoc/po...

I'm not medically trained.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Sleepybunny

Thank you Sleepyybunny

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Sleepybunny

Thank you so much for the references!!

Scott-rock profile image
Scott-rock

mine has been over 1400 for months since I started treatment. Haematologist a couple of weeks ago said my doctor has it well under control!

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Scott-rock

Interesting.. thank you for your help bye

Litatamon profile image
Litatamon

Have you been tested for PA?

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Litatamon

I don't think so, 🤔🥴

pitney profile image
pitney

Mine are always over 2000 one GP told me that it was as high as the scale went but I don't know if thats for sure. Now I just warn them beforehand that the results will be around the 2000 mark 😀

PolyannaYorkshire profile image
PolyannaYorkshire in reply to pitney

Thank you... Very helpful. Do you have any side effects?

pitney profile image
pitney in reply to PolyannaYorkshire

I still get a lot of PA symptoms even though I self inject every month but they are not as sever as when I was having B12 injection every 2 months but I have very few days when I feel really well so its hard to say if some of this is cause or treatment, all I would say is I'm better with than without and I continue to work on my diet and vitamin intake to see if it makes any difference. Good luck and best wishes 😀

PolyannaYorkshire profile image
PolyannaYorkshire in reply to pitney

Thank you so much for your words of encouragement it is dreadful isn't it living like this but we could be a lot worse I suppose!!

mcg-woo profile image
mcg-woo

I self inject weekly under the care of a doctor. My b12 levels are over 2000 and have been for years. My doctor runs yearly blood tests to make sure everything looks good and it does.

My symptoms went into remission after long term weekly injections. High B12 levels aren’t harmful unless you are not supplementing as it is indicative of an underlying health issue.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to mcg-woo

Thank you for your help

Technoid profile image
Technoid

No, its not possible. Such readings are not unusual when taking high doses of B12. You cannot overdose on B12 so there is no medical risk. Too much of some forms like methylcobalamin may cause anxiety or insomnia but no long-lasting effects.

Despite your high readings, if you have PA you may need injections, not tablets to alleviate symptoms. Serum readings are not necessarily indicative of effective treatment - alleviation of symptoms of the B12 deficiency is the only reliable guide to the right frequency and dosage.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Technoid

Thank you so much for your help

Motheroflittle profile image
Motheroflittle

I had the same thing happen. I was taking B12 orals and my B12 test came back over 2000. Because I had a prior P.A. diagnosis , megaloblastic anemia and symptoms , It proved to my GP that I was not actually absorbing it. Now that he has me on the injections most of my symptoms are going away or at least much improved. I have not been tested again since starting the injections so mine could be even higher now but it doesn't matter because I am still improving. GP is not worried about levels being too high while supplementing. High levels WITHOUT supplementing should be investigated.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Motheroflittle

Thank you mother of little for your help great so pleased to hear you're improving

Catlover3 profile image
Catlover3

Hi. When my thyroid levels weren't in their usual range I suffered with horrendous vertigo which caused me to be bed ridden and made my tinnitus worse. Also being deficient in D3 can also cause aches and pains and fatigue. If you haven't had your D3 tested recently and don't supplement it may be worth having it done.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Catlover3

Thank you for your help I do supplement my vitamin D3. My GP reduced my levothyroxine so it could be my thyroid causing it

Catlover3 profile image
Catlover3 in reply to PolyannaYorkshire

Oh no! Dr's are obsessed with ranges when you go slightly over but never seem to be bothered when its the other way. I gave up and have been self-treating myself for the past 21 years with natural desiccated thyroid. I do regular private blood tests to keep an eye on my levels and go by how I feel, not what the numbers say. They should be used as a guideline, not set in stone. Hope you get sorted soon.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Catlover3

Thank you... I cannot believe how many people are living in pain etc ... And self medicating... Like myself... I too get private blood tests.. but this one was at my new gp practice as we have moved to Lancashire.

Hockey_player profile image
Hockey_player

If you are not taking B12, a level too high could indicate a problem. But it is normal to have a high level when you are supplementing. B12 is not toxic and you will pee out what you do not need. I would look for another reason for double vision and balance problems. My mom had a brain aneurysm. It may be a problem with your eyes. I would see a doctor and an optometrist.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Hockey_player

Thank you so much for your help I had an MRI scan and it showed some inflammation or something that a consultant said he wasn't worried so my GP has referred me to a different one.

Mine also come back at that level as I SI, doctor just warned me of 'safe' levels but I think if you get injections they do come back around the 2000 mark anyway

PolyannaYorkshire profile image
PolyannaYorkshire in reply to

Thank you Rachel

Sleepybunny profile image
Sleepybunny

Hi,

I am concerned for you. I think you've posted on here for more than a year and my understanding is that you've still had no treatment from NHS despite a family history of PA and typical symptoms.

I don't have a confirmed PA diagnosis but had many typical symptoms of B12 deficiency and didn't start to improve until I got B12 injections. I did try high dose oral B12 but it did very little for me.

There have been forum members who developed spinal damage from delayed diagnosis/inadequate treatment.

Have you had any help from PAS?

You would need to be a PAS member to use their helpline.

PAS membership

pernicious-anaemia-society....

PAS Contact Details

pernicious-anaemia-society....

Some forum members have been supported by person who runs B12 Info.com (formerly B12 Deficiency Info)

b12deficiency.info/

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Sleepybunny

Thank you so much!!

Sleepybunny profile image
Sleepybunny

When I searched online for "B12 deficiency double vision" I found articles that suggested double vision could be a symptom of B12 deficiency.

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Sleepybunny

Thank you SO much.. I've started checking them out. I jave moved so have a new GP!!

Hectorsmum2 profile image
Hectorsmum2

I was well over range and full of symptoms when I started injections. I also get similar symptoms if I take my thyroid hormones too late in the day, vertigo, buzzing, swimming head, falls. I need both T3 and B12

PolyannaYorkshire profile image
PolyannaYorkshire in reply to Hectorsmum2

Thank you... Dead loss isn't it?!!

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