I used to be a tennis player/coach.....i was in physical therapy for mainly tendinitis....nothin to serious, i used to just completely over work my shoulders when i was younger and would never stretch......I dislocated my shoulder by doing behind the neck shoulder press. I normally use dumbbells but chose to use barbell....when i went to hook the weight i missed the hook and the barbell went back pulling my arm.....i was still only the weight trying to pull it forward, someone came over quickly and grabbed the weight, but when I released the weight i fell my shoulder pop out, and when i pull my arm forward it popped right back in luckily........Shoulder doesnt feel swollen, but my joint does hurt with certan movements....brushing my teeth, raising my arm above my head, etc irritates my shoulder......it is feeling better though and I am hoping to get back to lifting asap....as of right now I am just trying to rest my shoulder and use it as little as possible