this intolerable pain...is it new? how old are you?

what was the old Wikipedia reference-linkMRI result...

It sounds to be like you have been lifting heavy objects, carrying a heavy object with it causing ur arm to drop downwards...or trying to pull something tough...

hard to say...unless a comparison can be made with the old one

In a nutshell, what that suggests where your collar bone joins with your shoulder blade is wider perhaps, one of the muscles that help you turn your shoulder outwards has undergone some trauma? or some degeneration at the point where it connects with your arm...and this is causing some swelling in the shoulder joint in general.

again is the pain new?