Well tegz without being rude about doctors one is left to wonder what docs have 'heard of' I think many doctors these days are no longer trained in the art of analytical doctoring -they just look at the list and if it doesn't fit their protocol on their computers it doesn't exist! Of course if they took time to stop they would realise that medicine has principally developed by two routes :-
1. the big pharma companies that want to sell their products - doctors listen to them.
2. doctors who investigate and research conditions to find causes and solutions....this is when conditions get discovered and effective treatments get proven....lol
Sadly for us lot the big endos in the sky pulled their shutters down and refuse to review their protocols for not only diagnosis but effective treatment...lol
I wasn't on any thyroid meds for several years though i felt soo ill. it was only when my TSH blood test tipped up by 0.1 that they finally diagnosed me -amazing what 0.1 can do! i was quite sarcastic with the doctor about it as it seemed so ridiculous to make such a fine line in diagnosis....but you know those protocols rule!
And once diagnosed i only got well when I went private....
Anyway look at the vitamins D Council website -the advise 5000iu of D3 as a safe level -but you shoudl get your bloods tested periodically for D3.
The b12 -well i wasn't technically deficient -perhaps a little low so i was really surprised that it made such a difference -i take Jarrows Sublingual -if you loo at my other posts your see more info. And avoiding the grains ( rice included) seems to keep me clear thinking and more energetic, helps with control of weight (but still an issue if not guarded closely...lol) x