I had been on synthroid since the mid-80's. My thyroid had been "damaged" during radiation therapy for Hodgkin's disease.
Last year was BAD for me emotionally. I went off my medication last spring. I had blood work done in Feb. My thyroid levels were NORMAL! Still don't understand how that's possible. We are repeating the test later this month. I feel great- full of energy.
I certainly am not advocating anyone going off their medication, I feel very stupid for having done so.