i have always had trouble with my shoulder, since i was about 15. It never hurt but was always bothered by it, kind of felt like it was going to pop out. Last week while i was putting on my jacket, i pulled my arm to far back and it felt like i pulled something, it really hurt. I would move my arm around and i could feel a tendon jumping around.
So i went to the Orthopedic took some x rays and said nothing was fractured. He moved my arm around and asked me if certain movements hurt. The one that hurt was the movement that's similar to when a cop grabs you by the elbow and pulls the forearm back. He gave me the medicine for the pain and inflammation. I have to go back in two weeks and he told me to rest and put a heating pad on it.