In 2003 I had a hysterectomy and was put on estradiol. A few months after I complained of just being tired all the time and had had tachycardia for years. Instantly I was put on synthroid. Within a year I started all the classic symptoms of a thyroid problem such as hair loss, weight control, rashes, dry eyes/mouth&skin, IBS, fatigue, more tachycardia and lately little white hard cysts on face, feet, legs and even on the vulva. I kept asking Dr s if I should be on synthroid and all insisted yes! Dr s - sent to heart, endo, respiratory so forth and so on! All to help with new problems! I finally decided to ween myself off and try to go natural but felt bad on it as well. Now I am seeing a new Dr. Who ordered an ultrasound. I had the ultrasound today and it showed black spots all over both sides of the thyroid. I don t see the Dr for results till Fri and I have been searching the web to see what could cause black spots? Can synthroid cause the spots if I shouldn t have been on it all this time?