Can anyone tell me what the desirable ranges are, not just what is considered "normal", please?
I appear to have symptoms that could indicate vitamin B12 deficiency, and as I also have Crohn's disease, I mentioned it to my gastro consultant. He seemed much keener to attribute it to anxiety than a physical cause, but agreed to run blood tests anyway.
I'm waiting for the results, but want to be know what I should be looking for.
He reluctantly agreed to test TSH AND FT4, but nothing else, since my previous thyroid tests have been "normal".
I have no diagnosis of thyroid problems.