for years now, on and off ive had what seems to be a burning sensation at the top of my left shoulder, not right on top but a little above my shoulder blade. it comes and goes and sometimes the pain is not too bad and other times, like tonite, it feels so tight and like its on fire. im not too sure what triggers it, like i said it just comes and goes but i know it hurts and burns like hell. does anyone know what this could be ?also, when i move my arms and neck the pain gets worse. i wont be able to get into my doctor until dec. and im just kinda curious... thanks in advance