I have left should pain that goes below my collar bone, it's a burning type pain in the muscle, down the arm to my hand with a numb feeling in the hand, sometime some fingers are included. I can not reach behind my back to hook my bra any longer. I have been laying on my left side a lot due to chronic head pain on my right sued from a car accident 6 years ago. This just started a few months ago, but got better, now it's been back for the past 2 months. I've treated it with ibuprofen, heat, and getting in the hot tub with the jets, it helps a some, but not long enough. I can not lay on it at night now. It is very painful. Sometimes there is a gripping spasum pain in the muscle too.