I am 18 yrs old. Few months ago my relationship with my girlfriend was ended. after that i fell a lot of heartbroken feelings. so i think to go to gym. I was a skinny guy. first ways at the gym was very painful for me. but time passed my body start to change. I didn't use any artificial supplements. I only ate well as my instructor said. after few months my heartbroken feelings were gone and I felt very confident about myself. but yesterday morning my chest is started to pain like hell. I felt