Emma - I am a 4 year thyroid cancer survivor and like you had my thyroid removed. I have been on Synthroid 160 for most of the 4 years after a little calibration of levels. I heat relatively healthy and I am very active - last Sept. I did a sprint triathlon and right now I am training for a half-marathon in May. Initially I gained 20 pounds after the surgery, but with my increased activity I have lost 10 pounds of it, but still have the nagging addtional 10 pounds that I can not lose for anything. I'm glad to see I am not the only one experiencing this. It is very frustrating.i have just had my whole thyroid removed due to thyroid cancer and am one week into my lexothyroxine but before i had the radio active treatment and after my surgery my weight went up a stone and half in 4 weeks!! I need to lose this again as im getting married in June and cant have my dress re-sized. Im on 175 of the drug as my docs told me they would make me slightly hyper to help supress the cancer and this in turn would keep me slim and that i should lose the weight i gained maybe even more....this sounds too good to be true...but im nervous im not going to lose weight after reading all of the comments on here....although i do fell like ive lost weight this week, i havent weighed myself yet. please some advice from someone who knows and has been on this drug for a while would be much appreciated.
The good news is that the survivor rates for thyroid cancer are excellent and an additional few pounds won't kill us.