I fell on my shoulder while running at a pretty good clip. I didnt notice initially but about 10 minutes later a pain on the right side of my sternum that seems to radiate along my ribs around to my upper middle back. The pain has persisted for several hours now. The right side of my sternum where my pectorial muscle attaches is sore to the touch. No visible bruising. No heat. It hurts when i breathe as well. Thank you.