Just popping over from the Pernicious Anaemia/B12 forum on the advice of somebody there.
I've been going back and forth to the doctor's since March with a range of symptoms including:
-faintness/lightheadedness (it never goes!)
-weak/numb legs and left arm
I displayed macrocytosis and nucleated red blood cells in a FBC. The doctor ordered a B12/folate test. My levels were 243, and I was not treated for a B12 deficiency as I was within range. I was tested for various things (and am now waiting for an elusive neurologist appointment) including: vitamin D, iron, diabetes, thyroid function. I was misdiagnosed - a virus, labyrinthitis, menieres. Eventually I started to do my own research and realised that although within range, 243 is a very low B12 figure and that many people can be symptomatic at this level. I discussed this with the doctor, who agreed it was possible and was given just one B12 injection and then told me to supplement as I wasn't "very deficient". I have since sourced my own injections and am currently into my second week of self injecting daily. I know that recovering from neurological symptoms with B12 injections can take quite some time, but in the meantime I am trying to rule anything else out which might be causing my illness. I know that B12 deficiency symptoms can mirror thyroid problems so I was wondering if anybody would mind letting me know if they think this is worth investigating.
My serum TSH level was 1.59 mu/l.
I know this is within 'range' but is it worth looking further, can these tests ever be inaccurate, misleading?
I appreciate any help or comments!