Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. The symptom is part of anxiety. Anxiety is debilitating. Along with negative thinking and worries about health, it becomes dangerous. Once your doctors said, you have nothing to worry, you must believe them and get back to work. Rest we shall later. That is the best course of action. If you still worry about your health, you shall face with moderate to severe anxiety disorder in the near future. Change yourself for better. If you require more of my help in this aspect, Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques which should help you cure your condition further. Hope this answers your query. Available for further clarifications. Good luck.