I have all the symptoms for Hypothyroidism (except low libido). I have had these for several years. i.e. Hair loss, constipation, fatigue, muscle & joint paint, depressions (which is getting worse), extreeme sensitivity to cold, fatigue, heavy periods (I've had to have an ablasion to stop the abnormal heavy bleeding, I exercise 3 times a week - cardio & pilates (I haven't lost a pound and I've been doing this for months), dry skin, my hair might as well be stray, and my nails very week. Also, my mother & grandmother (mom's mom) both have hypothyroidism. All my tests are normal. NORMAL! (My mother's are to they only found her problem because she had a goiter) My doctor says I'm just depressed and maybe have fibromyalgia. I say bunk. Do the symptoms of another disease mimic hypothyroidism or am I just crazy.