I am running for last 3 years but not regular. For last 4 months I had been running regularly. Last 2 weeks before while running I had a bit chest pain while running, I was not feeling any shortness in my breathing. I continue my run and just after I finish my run (39 Min's 6.72km) the pain vanished. Last Sunday when I started my long run the pain came back, I run for (1hr 42mins - 15km) with the chest pain and not for 1 sec I felt uneasiness in my breathing. It would be very helpfull for me if any one could help me in it with your sujjestions and experience. I am going through website to find out answers or any one with the similar problem.
My last run BMP as per my Polar Watch is 167 avg to 178 max.
You may want to get that checked out. It would ease your mind to hear that you pulled a chest muscle doing push ups but worse case scenario, it also could be a blocked artery. It never hurts to see a doc.