Hi Sir My chest pains time to time.. Also pains in the left arm, back, underarm,shoulder, neck. Heart burn , palpitations, shortness of breath, swaeting,gas. I did ECG, ECHO recently, it was normal.. Even last year it's normal. My HDL is low like 38-39mg/dL. It's every often.. People say it's muscular or anxiety.. But it's very true I am experiencing it . What could be the cause of this typical Heart Attack like symptoms.. I experience this likely a year now. Please suggest