The other night, I woke up with a pain under my left breast along my side from my middle to upper rib cage. I'm thinking that I pulled a muscle? It hurts when I breath in deeply and it is hard to sleep at night. The first day was not too bad but into night and morning number 2 it's getting worse. I'm trying Flexall and some Ibuprofen for the pain, should this make it better? Any tips on sleeping? When I sleep on the injured side it feels like I'm putting to much weight on it, but when I sleep on my right side it feels like I'm pulling the muscle even more. Any self rememdies, I'm trying not to go to the doctor unless totally necessary? Thanks. Dan