oh I can so relate...palpitations I get them all the time. They were the first thing that started with me down this awful road of anxiety..apparently there harmless at least mine are. My dr. gives me a beta blocker to supposedly stop them but I still get them now and then. I to ended up in the E.R and yes my chest aches after when they get bad..but I think it's from the breathing not my heart that makes my chest sore. Take care