Hello Dr. I had an Angiogram about 6 weeks ago due to pain in my chest when I was doing Insanity workout a few times. The test was clear. I haven t worked out yet but still get weird feelings in my chest and shortness of breath. My primary seems to think that I have a pulled chest muscle since I was also doing weights at night for a double workout. Could something serious be going on still? What if that sharp pain happens again? Please advise.