I was wrenching on a car and somehow tore the sack around my elbow. If you look right in the crook of the elbow that is a bone sliver that the doc says was pulled free with I tore the sack around the joint. Got a steroid shot (not the good kind for the gym damn it) and hopefully no MRI or surgery. When I use that arm it feels like my elbow starts to tighten up till it pops and I get shooting pain from my elbow all the way to the wrist and shoulder. Then I am ok till it starts to tighten up again. Sadly it is the right elbow, and I am right handed. It popped three times in less then an hour putting an alternator in this afternoon.