Shoulder Pain getting worse?

About a year ago I had an epileptic seizure, an fell with all of my weight on my elbow. Im at a point where i can not even touch the other shoulder (Its way Too Painfull) I have had X-rays they show nothing. The only way I get reliff is to hold my arm strait, any movement hurts like hell. What can I do it has been a year and getting worse. It feels like torn rotater cuff times 10. waht could it be and what can I do for it?