question: I have a very sensitive right shoulder, right where the arm connects to the shoulder. I thought maybe it was a bruised bone, as I spent many hours sleeping on it while traveling on plane. However, this is not a bone. The sensitivity as at the surface or just under. Any sort of touch to the affected area results in serious burning pain, enough to make me tear eyed. I have a strong threshold for pain, so I fear that I might have torn a muscle or something of that nature.