why is my shoulder Crunchy. and Complaining. and Angrey.

i mean i know why, i know the exact motion i did and foolishly went "hm! that hurts, but it's a distinct sort of hurt, let's see if it fades if i keep this stretch up or not! this new type of pain might be a clue!", but i am still going to do some whining in the form of rhetorical questions.