i'm worried about this. I have had this for about 10 months now. drs. say its just anxiety. I have lost 15 lbs at least and have jerks and twitches only when I try to relax and go to sleep or am just waking u. I awakening with feelings of my heart palpitating. I have had tailbone pain. My tsh says .810 which I know is within normal limits but...... I have a lot of colloidal cysts on my thyroid shown by an ultrasound. could these be producing hormone at their own whim? ?