i recently been experiencing upper pain in the shoulder area on my right side of my back. As days go by, it increasingly gets worse as if it is slowly moving up my neck area, making it hard to turn my head, and when I breath deep it hurts a little also. It is painful. The pain in mostly in the upper shoulder or the more intense pain that is. During this time i seem to burp little burps relieving it little bit and it builds right back. I have drank carbonated beverages making me burp but it is only temporary relief. What is causing this? This has periodically happen several times and it seems like it is always on the upper right side.