I don't drink, smoke, drink coffee and seldom tea, mostly herbal tea that is caffiene free, and I have racing heart/palpitations. Also, it sounds like blood is rushing in my whole upper body, especially my ears. I am having problems sleeping and relaxing that is causing more problems. Does anyone else out there relate to this problem. I have had all types of heart test, blood test CBCs, Thyroid test, ECHO's, EPS, holster monitors, threadmill test, ultrasounds, catscans, MRI's, you name it, the numerous doctors I have been too say there is nothing wrong with my heart. Something is wrong! Is there anybody else out there with this problem?