So my thyroid has given up the fight and no longer works. Meds, exersize and diet all change and I'm living with a high level of fatigue. A little google work and come to find out, the thyroid is effected by constant exposure to low level radiation. Hmmmmm, like 30 years working on DU Tanks? If you were working around these vehicles, go get yourself checked out. I'm gonna see the VA when I get home.