Welcome to HCM
We understand your concerns
From the description you gave and if the cardiac tests are OK, the troubles you are having can be associated with gastric complaints and hypochondriasis
with more anxiety about diseases and health). You will be needing psychological intervention as well as meditation
. Life style changes should be made so as to engage yourself totally throughout the day and make yourself tired. Meditation helps to channel thought process. I can help you online if you desire so.