I started with Bodybuilding about a month a ago. I do normal exercises with my friends who has more experience. I dont want to be a new Ronny Coleman, but want to be in better shape. In the last few days I feel a slight pain around my heart after the workout, after days of rest it goes away, as soon as I get beck to training, I feed the pain again. The pain is not huge, but it was never before. What to do?