I dont have a goiter but it has gotten visibly bigger, you can actually see a bump on both sides of my neck. Right now it is causing me to have unexplained headaches (mostly on the back of my head). I have a constant "tightening" in my neck like i'm carrying a weight around it, also intermittent pain in my entire neck, dizziness body aches (like i have the flu except no high temp), it feel at times like something is trying to burst out of my neck, i cant lie flat because i get air hunger. I've been on 100 mcg of Synthroid since july 21 & was feeling ok for a while. I do have Hashimoto's & probably still have the antibodies (that's what my dr told me last month) I am calling my dr tomorrow morning because i can't live like this any longer. The only energy i have is washing dishes & fixing meals (so long as it's not heavy duty) I cant even exercise and even though i'm still working just the thought makes me ill :confused: Need someone's opinion here, i would so appreciate it.