Hello, I have this pain on my upper right back since September of this year. It is a pain when I move my right arm, or get up from bed or doing any kind of activities like reaching, bending or lifting. And it is in a localized area of my upper back where my bone meets shoulder. I have tried moving my right arm to exercise it, but it is still there. I have tried massages with tiger balm. I have tried taking pain reliever, but it does not relieve it. It it muscle strain or pulled muscle or arthritis?