my name is Michael. Recently, while at work, I begin feeling twitching going on in my upper chest directly on the boob, over the heart. I went to the emergency room, who did an ekg, and extensive blood work, wherein I had go give blood in a 4 hour span to check to ensure the heart wasn t releasing enzymes indicating I was having or had a heart attack. All reports were negative, yet I still continue to have this twitching...Help!