ok all you old nurses on here, help me out! Or anyone for that matter. I have severe pain in my deltoid muscle in my left arm. Feels like a never ending cramp, worse at night orwhenever I move my arm excessively. Pain raidiates to my left shoulder and vice versa. Have tried tumeric, extra strength tylenol, advil, you name it in various combinations. Have put deep heat on it, iced it, heated it and nothing. Went to the clinic and all the nurse practitioner wnted to do was either stick a dry needle in it (acupuncture) or shoot it with lidocaine. NOT going to happen! Would it have anything to do with a torn rotator cuff or shoulder injury. On a pain scale of 1-10, it most generally is a 5 radiating to a 9, especially at night. Help!