I never had it diagnosed, but I have a large number of symptoms of thyroid problems, and I respond well to the stuff I take, so it's pretty much a fact that I have them. What I take is magnesium, zinc, selenium, and moderate amounts of table salt. That combined with a good diet and regular exercise keeps the symptoms at bay. Recently I've also been taking "Now" brand "Thyroid Energy" pills which contain all that stuff and more, and I might switch to those, although they are more expensive. Additionally, I try to keep flouride and chlorine exposure to a minimum. The symptoms I get when I don't take supplements are fatigue, an itchy balding head, low body temperature, trouble concentrating, low lung capacity, and in the past, I think I had an enlarged heart from pushing myself too hard aerobically while still having the thyroid deficiencies, although that's kind of complicated. Anyway, I was wondering who else has these troubles, and what you might do to fend them off.