I've posted on other boards, but new to this one. I have been on Synthroid for about a year. Tests always come back ok. I have bi-polar disorder, but never really get better no matter what we do. I have started to wonder if it may be thyroid. Although the tests are always normal. Doctor switched me to Armour thyroid a month ago. He thought it is helping because my night sweats aren't as bad.??? Correct me if I'm wrong, but I thought that was a symptom of hyperthyroidism, not hypothyroidism. These doctors scare me sometimes. I think I have night sweats because of bi polar meds. The reason I suspect my thyroid isn't right is, depression, lack of energy, thinning hair, digestive problems, feeling cold all the time. And just feeling crappy in general. Feeling hopeless. Please let me know what you think.