I am in the same boat you are. I went all through the meds circus over the past year myself. I had my TT with pap thyca in June 2011, started on 100 mcg of Levothyroxine. Then, upped to 125 mcg, then upped to 137mcg. Still felt really hypo, no weight loss, tired all the time and felt just "ugh"! So, endo had me switch to Synthroid, dropped me to 112mcg and then added 5mcg of Cytomel at 8am and again at 3pm each day. I started to drop weight...then I started getting really tired by 4pm a few months ago, even with the Cytomel, get low grade fevers, night sweats and flu like pain all over. I have some enlarged nodes, but PET came back clean and Thyrogen is <.02. I don't sleep through the night, 3-5 nights a week. And I'm at 223lbs, when I was at 175lbs when all of the thyroid issues started (had hashimoto's too). I'm not sure what to tell you, as I'm in the same boat as you...but I am hyper due to the suppression. I'd love to hear if you get any answers/suggestions.