In my response re anemia I said “B6” — ‘should’ve said B12, sorry. That would be pernicious anemia due to lack of intrinsic factor. You could try a search engine, typing in “pernicious anemia”. The book, “Your Thyroid, A Home Reference” has some good explanations. The authors state that the other type of anemia is common in people with hypothyroidism. Why don’t you ask your doctor which type you have?