hello i am a 30 year old smoker, severe panic attacks, a normal abnormal ekg, clean heart cath done seven months ago, and now I am getting attacks again that make me think that I am having a heart attach. I get on and off pain in my left arm and hand, acid reflux which makes it all worse. I am scared to death that I am going to have a heart attack I even ended up in the ER the other day and my ekg has not changed and my heart enzymes are normal.