This happened just earlier today and it is almost unbearable. I can not go see a doctor for anther couple of months because my insurance will not go into affect until then. I was laying on my side playing a game with my son. We were on my bed. When we were done I rolled over and thought about going to sleep. All of a sudden my mid to upper back started hurting. (the area behind my breasts) It was not all that bad at first until I got up and started walking around. Then it was hurting to the point my body was automatically doubling over. So I decide to get a heating pad and put it on my back hoping it is just like a muscle cramp. The minute I sit down I start getting the pulsing stabbing pain through the ribs right below the breasts. Every time it would make me jump it hurt so bad. Obviously the heating pad did not work. I am hoping I should be able to sleep it off, but if not I would like some suggestions about what I did to cause this to happen. Thank you and good night.