As I said before, in all the many lab tests Dr. Pushy ordered, one did turn up something -- the thyroid antibodies test. A followup test ordered by my current doctor revealed a similar result, so she recommended treatment with a low dose of levothyroxine to help stop my system from attacking the thyroid. On the low dose (25 mcg.), I was feeling a little more energetic at first but then things seemed to level out. At my latest appointment we discussed upping my dosage, and I decided to go ahead and try that.
No dramatic weight loss, though the books suggested I shouldn't expect that. What I did experience at first was a little boost in mood and a lot more energy. I try the higher dose tomorrow, so we'll see if I feel a difference again.