I am a 49 year old female, went to ER because dentures were blocking salivary glands and thought it was allergic reactions when glands were swelling, during radioactive scan found thyroid mass with some calcification scheduled thyroid surgery, the night before pre-op I had rapid heartbeat, pounding, chest pains trouble breathing high blood pressure, exam on heart EKG and stress test showed no problems, went ahead with Lobectomy the next day , I asked if it was thyroid storm, answer was no, because thyroid levels were normal. Mass showed small papillary cancer, which was removed with the mass, frozen biopsy on other side(calcification) came back benign, no radiation therapy was advised. Had another attack: rapid heart rate etc. more extensive heart workup was done including catheterization…all good, Cardiologist put me on lopressor, which stopped the pounding . But Had another attack, with blood pressure dropping low at night, then at day going back to high again as I moved around. Was sent Endocrinologist .because of family history of adrenal carcinoma, found my thyroid levels were now low and was put on synthroid .Did a 24 hr. urine and blood work…adrenals are fine, had the worst attack ever with it lasting an hour starting and stopping three times. I am taking klonopin as needed, and it takes he edge off, but does not stop it. I am tired of feeling like each day is a struggle to stay alive. My question is…I truly don’t believe this is anxiety, because of all the variations ,high blood pressures, and high resting heart rate, and then low blood pressure and low heart rate. What is my next step? I do have a grapefruit-sized fibroid that hasn’t been checked in years, could this cause such problems, Could it be a neurology problem, if this clicks with anyone, please help me, I am sick and tired of this.