I just a week ago reached over the arm of the couch to reach for something & then could not reach it so I leaned a little further & hurt myself, my chest really hurt kind of bad & the next few days it got worst, it hurts to sneeze or cough and it is very uncomfortable trying to sleep, I took ibuprophen (2) twice/day but it does not seem to help much, it also hurts to bend over. What is going on here? Pulled muscle? How long before I can work out & what can I do in the way of exercise? Thanks.