I have it too. I'm about to be 2 yrs post op. I met my goal at 180 and went below to 173. My 2 and yr has been a struggle. I have been exercising like crazy, eating the same, but I gained 10 lbs my 2nd yr. I just seen my PCP and I told her I stopped taking my synthroid 3 yrs ago. She checked my levels and I just started my synthroid therapy 2 weeks ago. If I lost my weight with out my synthroid, then why am I now struggling to lose the 10 I gained? Is the lack of thyroid medicine finally catching up and thus the lack of weight loss?