Hello - long post ahead.
I posted here last year, prior to seeing a neurologist as I was (and still am having) neuro symptoms: occasional tremor in hands, constant pins and needles in hands and feet, numbness (hands mostly).
I have Hashimotos Thyroiditis and psoriasis. I was diagnosed as B12 deficient in 2010 after decades of symptoms, but mostly flaking nails, dry skin and exhaustion. I was prescribed loading injections then 3 monthly doses but these were stopped in 2012 during my pregnancy. I'd also moved out of the area to a different surgery, and they refused to reinstate my injections once my son was born.
I was diagnosed in 2017 with thyroid disease (again after many years of symptoms, and being ignored). I also had gastritis and was tested for PA but was supplementing heavily with a B12 oral spray. The gastritis was found to be atrophic (gastroscopy) and my IF and parietal cell antibody tests came back negative. Ditto for celiac disease.The specialist suggested my using B12 could have skewed the results for PA.
I've since had another endoscopy and the gastritis remains after 3 years. The results were 'reassuring', whatever that means. Apparently this consultant denies it being atrophic. I was then dismissed back to my doctor, despite having been assured they'd get to the bottom of the problem using a process of deduction. Both times I was told to take Omeprazole, but I didn't as I know that low stomach acid could be the cause of my poor nutrient absorption (I have very low iron levels too, and folate - I now supplement with methylfolate along with iron, Ester C, selenium and magnesium). I've just started a short course of Omeprazole to try and stop my stomach from burning and give it a chance to calm down. I'm getting desperate and natural remedies aren't helping.
I eat well, am not vegetarian, don't smoke or drink.
I paid for private blood tests a few times and the most recent (last summer) showed my active B12 to be high - I was taking a daily sublingual 'melt' of 1000mcg plus an oral spray. Someone on this forum said that meant I definitely do not have PA.
I suggested it as a possibility to my GP due to the neuro symptoms, which started almost a year ago, but she said it wasn't B12 as I don't have enlarged red blood cells. I did give her a lot of printed information as recommended here but she dismissed it.
Unfortunately the GPs in this surgery are quick to suggest anxiety or depression as the cause for most illnesses if you're female and it's incredibly frustrating. I know they're gaslighting me, and I now avoid going there as much as I can. My MRI scan came back clear, and only my copper levels were tested. The neuro has said I have a 'functional neurological disorder' and suggested I look it up online. She also said it couldn't be B12 related, despite not performing any tests.
So. Finally: I'm thinking of trying self injecting to see if there's any improvement in my symptoms. I've noticed I'm exhausted and my nails are starting to flake again. I'm 44. I tried contacting my old surgery to see if I can get hold of my records and see why I was given B12 injections in the first place - this was prior to me supplementing and there may be a clue. But I asked both my new surgery and old one to help and each one is blaming the other for my records going AWOL. It's been over six months and nothing.
Is it worth trying self injecting?
I've completely given up on the doctors locally. It's a very quiet, rural surgery so lack of time isn't the problem. Budget, maybe. There's definitely an 'I don't know much about that, so you must be imagining things' situation.
Apologies for the long post - it's been a very long, complex and frustrating journey and I feel I have to fight every time I see the doctor. I'm having to research so much and am aware that autoimmunity, iron deficiency and other nutrient deficiencies can cause similar symptoms. But the neuro ones seem pretty B12 specific...