Can someone tell me what the difference is between a pinched nerve and a calcium deposit? Does the calcium deposit cause pain? I have this shoulder pain that if I move it in a certain way, it causes a pain that will travel down my elbow and it hurts! I don't know what it is. I have neck pain and back pain pretty persistent on a daily basis and I don't know that my shoulder pain has anything to do with it or not. I do notice that it is starting in the other shoulder but it just aches from time to time. The shoulder that hurts, it will have an ache like mild burning sensation (if I am describing it right) My arms just ache at times. Any one have any insight for me? Thanks so much!!!!