It s symptoms that appear to be getting worse, but sometimes no symptoms whatsoever. I am trying to find out if it is a heart problem or a breathing problem? Had a stress test, echo cardio gram, nuclear medicine infusion to observe blood flow, my cardiologist said we are good. Upper chest palpitations that make me cough! Discomfort when I bend over, stomach always feels bloated, sometimes hard to catch my breath, not sleeping well.