I was told i have rotator cuff tendonitis with impidgement but what no one can figure out is why my shoulder bruises and swells every once in a while. Its very painful when it happens. I have done all the traditional things to fix it like PT, cort. shots, and accupuncture. My orthro dr doesnt think i need surgery yet and says it can do more harm than good. Please help as i have no idea what to do now.