I fell Thursday night and hit the upper left quadrant of my breast on the edge of my bathtub or at least I think that's what I hit. The left side under armpit hurts when I twist or stretch it. There's a slight amount of pain in the sternum area when I get up out of bed, but not otherwise. No pain when when I breathe normally and a little when I breathe deeply. Hurts when I cough. No pain when I sit or am lying down. Thank you.