A few years ago I was on a five day fishing trip. On the last day I got out of my bunk and my right arm was forced behind my head. I could not lower it. Unloaded my gear with one hand and drove a stick shift a hundred miles home with one hand.
So off to the doctor I go. He walks into the room and looks at me and says "what's wrong with your neck"? Is this guy an idiot? " Nothing wrong with my neck, its my damn arm. I can't lower it" Good God can't you see that? Ah no that's your neck. You herniated a disc in your neck and severely too.
So surgery and fusing with cadaver bone and a few month off, all is ok now. Life is like a box of chocolates you never know what you'll get. good luck mike.