be sure to have your thyroid tested.yeah as far as for the stomach side effects, i haven't had any. I guess my stomach is built ford tough. which it always has been but this hair problem, holy crap i didn't see this one coming. like i said before, i kinda rather have some farts here and there and some stomach pains than be 29 and balding. blah. i wrote my doctor on secure messaging and I've got a docs appointment in a few days. Maybe it is some sort of vitamin deficiency, we shall see!