I'm a 19 year old female and am having a thyroidectomy in a month due to nodules that are suspicious. I would like to know things that have changed for people after the removal (both good and bad). I am hoping that I will be less tired and moody once it's out however I am very scared of weight gain.I am 5ft 2 in and weigh around 125 lbs. I work out at least 5 days a week and generally eat healthy. My surgeon and doctor assured me that I wouldn't gain any weight but I'm reading all these posts and am getting worried. :|