I've had an issue with a pounding heart/bounding pulse than has been going for a years which I can't find a solution to. It is 24/7 and there is an endless list of things that make it worse and barely anything that makes it better. As the symptoms are present 24/7 I am unable to get deep sleep. Every night I will sleep 8 hours but wake up and feel awful. I have had pretty much every test you would expect to in medicine and am perfectly healthy on paper. This includes ecg, holter, echocardiogram, cardiac mri, blood tests, barium swallow to check for hiatal hernia. I have spent years trying to find out what is going on with no success. The only things that helps it is to restrict calories. Most supplements and medications make it worse, including beta blockers and SSRIs etc. Has anyone had these symptoms or made any progress in finding out what's causing the issue?