[wayner]

If you touch that spot and it hurts like hell, you’ve had a separated shoulder
(The opposite of a dislocated one)

The top of your arm bone went inboard
Spreading (separating) the collar bone and the shoulder blade ( that make up the socket)

Imagine a big elastic band wrapped around holding them together that stretched
The attachment point is where it hurts

It’s a sprain

Treat it as you would a sprain as long as everything is still attached

Ive done it twice to one shoulder and once to the other playing hockey