I was at the track before planning on jogging a few miles and after my 2nd lap I started getting a kinda blunt/sharp stabbing throbbing pain in my chest. It was like exactly in the center of my chest...I stopped for a while then started to run a few more laps again, and the pain just got worse, and I also started feeling it at a second spot like 5 inches down in the center of my solarplexes. It fucking hurt. I'm only 16, wtf I am too young to be worrying about heart attacks or any of that stuff. anyone have any idea what it could be?