It is kind of like little twinges. They are very scary and I sometimes then have an anxiety
attack. This includes pounding heart, sweating, nausea, diahrrea, SOB, inability to swallow, total PANIC. I have Xanax but don't like using it and when I do use it I take a miniscule dose. It does help, at least with the anxiety symptoms. I have had EKG, echocardiogram, stress test. All is normal. The only ting mentioned was some mild tricuspid regurgitation.