Well 8 days ago i feel pain in my bottom middle rib area. and swelling also observer near pain area. Doctor prescribe pain killer xobin 7.5 mg. Its improve over time . Now its sever pain. but litter pain or discomfort. Swelling less but still feel and viable. I don't know what is the cause and what else should i do.? when i sit in chair i feel discomfort after 5 min and have to change my posture. standing up improves discomfort. some time not feel any discomfort... any suggestion or what is the cause of it?