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B12-supplement causing restlessness, brain fog, anhedonia and sexual dysfunction

Sofa00 profile image
16 Replies

Hi!

I made a post a while ago about reaction to B12. I still keep reacting badly. I dont understand what is happening and How.I keep getting restless and have bad sleep. Also get bad brain fog, concentration and anhedonia.

The new symtom is sexual dysfunction.I had taken small doses B12 because of deficiency, and decided to try a larger dose again. Took it in the evening and woke up with numbness in my genitals and a shrunk clitoris (sorry NSFW).

The numbness has spread to my whole skin and body, and everything is less sensitive. Cant orgasm.

I also developed extreme anhedonia. Cant Feel anything and my body seems dead.

My cognitive function has never been so bad. I am confused most of the time, have very little thougts and struggle to speak.

This time i also got anxiety and restlessness.It feels like someone evicted me from my body. I literally have no emotions and feelings in it. Cant even Feel tired when i work out. I have to physically tell myself to stop based on my muscle hurting because i literally Feel nothing in my bodyI am sorry, but How on earth can B12 cause anhedonia, reduced cognitive function and sexual dysfunction/body numbness.

Does it cause depletion of dopamine somehow? I Feel like there is no dopamine in my body.

How does it affect the brain? I dont know if methylation is the cause or what. Seems like some extreme dopamine deficiency almost.

My GP wants me to take 1000 mcg injections because my deficinecy is so bad. But i am sort of scared.

Could my symtoms just be a coincidence even though it has happened several times?

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16 Replies
Pickle500 profile image
Pickle500

Sorry you've been feeling all these worrying symptoms.

Be assured that recovery from B12 deficiency is counterintuitive. When you put in more B12, the symptoms get worse. And our brains logicially think that it's a threat and so stop putting that thing into our systems.

But vitmain deficiency recovery is not the same as taking a drug or chemical that changes our body's reaction to something.

Your body is most likely 'aching' for more B12 to be able to do what it needs to do. The loss of sensation and numbness is the body most likely coming back to life where the numbness was previously dormant and you didn't notice it.

It's either that or the body is using some of the B12 from that area to help you heal in another area.

Many people, including me, went through 'reversing out syndrome' where the symptoms get worse and new ones arrive as your body reverses through all the symptoms you had leading up to the major drop in your levels.

If you stop taking B12, you'll stay very unwell. But if you take lots of B12 you'll also feel very unwell, but you'll be healing. And it does take a very long time, a year or more.

b12d.org/b12d/submit/viewbl...

Keep faith and try to get as much sleep and rest as you can. You will have to put your life on hold from any intense physical exercise or sexual activity. You can still do it! But you'll need to accept that it won't be the same for a while until you're better.

The most important thing you can do is to keep getting injections every day or every other day for a year or more.

Sleepybunny profile image
Sleepybunny

Hi,

Just wondered if you have had tests for folate, iron and Vitamin D?

Forum members often report deficiencies in these.

Nackapan profile image
Nackapan

Have the b12 injections.

You may not be able to absorb or process to cell level from tablets.

How ever many you take.

If its the only thing found to treat.

Treat with b12 injections

Then supplemen5 with folate if needed.

And anything else you low on.

Ate you eating and drinking well?

Sleepybunny profile image
Sleepybunny

Hi again,

" How on earth can B12 cause anhedonia, reduced cognitive function and sexual dysfunction/body numbness."

I'm not aware of B12 itself causing these symptoms but B12 deficiency can.

See symptoms lists below.

Some links I post may have details that could be upsetting.

I'm going to assume you are in UK.

Knowing which country you are in is helpful as it means people can post the most relevant info. Patterns of treatment can vary between countries and type of B12 used can vary.

I'm in UK so some info below may not be relevant if you're in another country.

Symptoms of B12 Deficiency (folate deficiency also mentioned)

pernicious-anaemia-society....

b12deficiency.info/signs-an...

cks.nice.org.uk/topics/anae...

b12-institute.nl/en/symptom... (B12 Institute Netherlands)

Symptoms of Peripheral Neuropathy (damage to peripheral nerves)

nhs.uk/conditions/periphera...

Peripheral neuropathy can be associated with B12 deficiency and sometimes with folate deficiency.

Symptoms of Peripheral Neuropathy (damage to peripheral nerves)

nhs.uk/conditions/periphera...

Peripheral neuropathy can be associated with B12 deficiency and sometimes with folate deficiency.

Neurological Consequences of B12 Deficiency

PAS news item

pernicious-anaemia-society....

B12 deficiency and Mental Health

b12deficiency.info/mental-h...

stichtingb12tekort.nl/engli...

What does the GP think is causing your B12 deficiency?

Have they asked you about your diet?

Have you been tested for Pernicious Anaemia and Coeliac disease, two auto-immune conditions that can lead to B12 deficiency?

Knowing the cause is helpful as can affect the treatment you are given.

Risk Factors for PA and B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/what-are...

b12deficiency.info/who-is-a...

Next link about causes is from a Dutch B12 website

b12-institute.nl/en/causes-...

I am not medically trained.

Sleepybunny profile image
Sleepybunny in reply to Sleepybunny

Link about writing letters to GPs about B12 deficiency

b12deficiency.info/b12-writ...

Link has letter templates that cover a variety of situations linked to B12 deficiency.

Link about "What to do next" if B12 deficiency suspected or recently diagnosed

b12deficiency.info/what-to-...

If you have a PA (Pernicious Anaemia) diagnosis or suspect you have PA, worth joining and talking to PAS who can offer support and pass on useful info.

You do not need a confirmed diagnosis of PA to join PAS.

PAS membership is separate to membership of this forum.

PAS (Pernicious Anaemia Society)

Based in Wales, UK. Has some overseas members.

There is a helpline number that PAS members can ring.

pernicious-anaemia-society....

Testing for PA

pernicious-anaemia-society....

Have also read that a pepsinogen test can be helpful in diagnosing PA.

Coeliac disease

UK guidelines below suggest that anyone with unexplained B12, folate or iron deficiency should be tested for coeliac disease.

nice.org.uk/guidance/ng20

More info on Coeliac UK website

coeliac.org.uk/home/

Sleepybunny profile image
Sleepybunny in reply to Sleepybunny

UK B12 documents

NHS article about B12 deficiency and Folate deficiency (simply written)

nhs.uk/conditions/vitamin-b...

BSH Cobalamin and Folate Guidelines (detailed, aimed at health professionals)

b-s-h.org.uk/guidelines/gui...

Summary of BSH Cobalamin and Folate Guidelines

pernicious-anaemia-society....

Diagnostic flowchart from BSH Cobalamin and Folate Guidelines which mentions Antibody Negative PA.

stichtingb12tekort.nl/engli...

BNF Hydroxocobalamin

bnf.nice.org.uk/drugs/hydro...

NICE CKS B12 deficiency and folate deficiency

cks.nice.org.uk/topics/anae...

Local B12 deficiency guidelines

Each Integrated Care Board (ICB)/Health Board/NHS hospital trust in UK is likely to have its own local guidelines on treatment/diagnosis of B12 deficiency. Might be worth tracking down the local guidelines for your area of UK and comparing the info in them with BNF, BSH and NICE CKS links.

Local guidelines in England are subject to change this year as CCGs (Clinical Commissioning Groups) have been replaced this year by ICBs (Integrated Care Boards).

Some local guidelines have been posted on forum so try a search of forum posts using terms "local guidelines" or submit a FOI (Freedom of Information) request to ICB/Health board asking for a link to or a copy of local B12 deficiency guidelines.

Misconceptions (wrong ideas) about B12 deficiency

B12 deficiency is not always as well understood as it should be by health professionals.

Links below list some of the common wrong ideas health professionals have about B12 deficiency.

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.

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...

Two useful B12 books

"What You Need to Know About Pernicious Anaemia and B12 Deficiency" by Martyn Hooper

Martyn Hooper is the chair of PAS (Pernicious Anaemia Society).

BNF treatment info in book is out of date, see BNF hydroxocobalamin link.

"Could it Be B12?: An Epidemic of Misdiagnoses" by Sally Pacholok and JJ. Stuart (US authors)

Very comprehensive with lots of case studies.

Copies of these books may be available from local library service in UK.

Films and videos about PA and B12 deficiency

PAS conferences and PA documentary

pernicious-anaemia-society....

Films about b12 deficiency

b12deficiency.info/films/

Sleepybunny profile image
Sleepybunny in reply to Sleepybunny

Many people on this forum including myself report that when treatment starts, symptoms get worse before they get better.

"Does it cause depletion of dopamine somehow? "

I don't think B12 itself can cause depletion of dopamine but B12 deficiency might.

I found research articles online that suggested B12 deficiency can affect levels of neuro transmitters including dopamine.

"My GP wants me to take 1000 mcg injections because my deficinecy is so bad. But i am sort of scared."

Is it the thought of injections or something else that is scaring you?

B12 deficiency requires prompt and adequate treatment or the risk of permanent neurological damage, including damage to spinal cord, is increased.

My symptoms only started to improve once I had injections and I count myself lucky to have avoided permanent dementia and permanent damage to my spinal cord. I had dementia symptoms and spinal symptoms when at my worst.

Please talk to your GP about being scared and I'm sure they will reassure you.

flosslechops profile image
flosslechops

I have also had this happen to my genital area too-thought I was the only person in the world who had had this!-but mine was a side effect first to insulin and then when I tried empaflaglozin ,both times it was frightening and very painful,after stopping each medication the area returned back to nearly normal,still have a little pain and soreness three months after stopping empaflagozin,I have been SI-ing b12 for nearly four years now and cannot praise it enough,from filling an a4 sheet of paper both sides with a list of symptoms I am now down to a post-it notes worth, so could it be a medication?

Sofa00 profile image
Sofa00 in reply to flosslechops

Your genitals also shrunk and became painful? My clitoris is almost gone! Can it come back?

flosslechops profile image
flosslechops in reply to Sofa00

yes,disappeared into my body,gp who examined me couldn't give me an explanation,it came back when I stopped using insulin ,but I was very shocked when it happened again when I tried empaflagozin,I've never heard of it happening before,don't understand why it would happen,but it has come back after stopping those medications ,I'm sure it has nothing to do with b12 as I was injecting two years before I started those meds and b12 has only been beneficial to me,I can find no info on the internet either about it,I hope you can find out the reason,I found it a horrible experience too

Ritchie1268 profile image
Ritchie1268

Sorry you're going through this. May I ask if you're taking any other medication?

Sofa00 profile image
Sofa00 in reply to Ritchie1268

Not taking anythfing else. I am taking folic acid though

Litatamon profile image
Litatamon

EDIT: I assumed from your post that you are taking methylcobalamin. Obviously disregard below if you are not. But then again you could take to another form regardless.

I have taken cyanocobalamin, hydroxy cobalamin, and methylcobalamin b12 shots. Some people feel no difference between the three. I do. I will never have methylcobalamin shots again. Can't even express how awful I felt on it. I did not even sleep an entire night right afterwards (always slept like a baby on cyanocobalamin). The agitation I feel on it is so strong that it extends to b12 pills & sprays. Just off in general.

Once I sourced a hydroxycobalamin spray, making sure that it was not a methyl product. I realized I felt so agitated - turned over the bottle and viola, it contained methylcobalamin as well.

There have many stories on here of people who are highly sensitive to methylcobalamin. So give another source a try simply to cross out that sensitivity as the issue.

MoKayD profile image
MoKayD in reply to Litatamon

I second what Litatamon said. I felt really awful when I tried methylcobalamin. Severe insomnia, anxiety, restlessness, headache, etc. When I stopped taking it the symptoms went away. I have cyanocobalamin shots every three weeks and have never had these problems.

EllaNore profile image
EllaNore

Yes, Pickle500 is right. It gets worse before it gets better. I am 4 months into it and was unable to really walk for the first three months, everything hurt. Especially my lower abdomen, weak legs, plantar fasciitis, walking like I have MS. No control over my bladder or my legs, anxiety, restless legs, insomnia brain fog, can't concentrate, can't say the right words. Words don't just roll off tongue, and the list goes on depending on the person. Everything went haywire. It is starting to calm down now. Some things may not disappear altogether but sometimes they do. It can take months or even years, depending on how long you have had it.

How often are you getting B12? Do you know your B12 levels? If your Doc says your B12 is too low and that you need injections, you need to listen to them. Did he say you had no Intrinsic Factor? If so, you have PA. Are a vegetarian? Alcohol consumption can also be to blame, and Nsaid's are thought to cause this and more.

Injections are a piece of cake. Don't let it scare you. The consequences of not injecting are much worse than the injections. You sound young, if it goes untreated or not treated correctly, as you get older, these effects can become permanent and this leads to dementia, Alzheimer's, and bed ridden or wheelchair bound. Believe me, you do not want to ignore B12 deficiency. It is a serious illness and there is no cure, just maintenance. Most of us inject according to our symptoms, Not doctors orders. They are usually not enough. some can inject monthly, tri-monthly, every other day (EOD) or even daily like I do right now, or a bi-weekly.

Right now your body has been in dis-ease for a long time. It takes a minimum of 5 years for your body to use up all the B12 it stored in your liver. After that, if you aren't absorbing b12 from your foods, you will become deficient. Your body slowly gets used to and adjusts itself to feeling bad and it becomes a normal way of life. UNTIL you crash. Until B12 tells you it is not fooling around and you had better get some B12 in your body before it completely shuts down. And it does. The injections are painless, with tiny hair thin needles. You can let your doctor inject or you can choose to self inject (SI) and buy your own B12. I believe most of us, if not all, SI now because we need more B12 than the insurance or docs will prescribe. It is very empowering to take control over your own health. I suggest you read everything you can find. There is a very in-depth list of symptoms someone posted for me. I will find it and post it for you.

You can do this. there is a fearless woman inside you ready to fight for her health. You need to help yourself. You need to take control. Your first great step was finding this forum. Everyone here has been so supportive and helpful. You are not alone! Hugs

EllaNore profile image
EllaNore in reply to EllaNore

This is the extensive list of symptoms: b12-institute.nl/en/symptom...

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