I've had this weird scar near my left armpit for several months now. It looks like a cross between a burn and a knife scar, and it's located right where the bicep meets the shoulder. The funny thing is, I've got no idea where it came from. I figured I probably got cut and didn't remember... but tonight, I noticed some similar scars starting to form on my right arm. Man, weird... if it gets worse, maybe I should go see a doctor or something. =/