I have a mechanical heart valve. Two days ago a friend gave me a hug good bye, but it was more like a bear hug. While squeezing me I hear, what I can only explain as, a deck of cards being shuffled. He also hear it and said "hey I popped your back." I said no it's in the front directly behind my breast. I thought that I might have tore a muscle. But it hurts to cough and take deep breaths. I hurts to lift things and feels better when I lay on my chest. I'm just wondering if it is cracked ribs(s) is there really anything that could be done? Do I need to see a Dr.?