Pain just under left rib cage feels like the base of the rib cage, it only hurts when I try to lay on my left side then when trying to move to the right side, sometimes I have to hold my left side to turn to the right seems to elevate the pain however the pain comes and goes does not hurt at all when I breath no back pain no shoulder pain but when I do feel the pain it feels like I am tearing something feels warm like a pulled muscle or torn muscle.