I Was Practicing Football And Got Hit In The Shoulder.

I was practicing Football and got hit in the shoulder. At first my shoulder got really numb and I started to feel sick. After the sickness went away my shoulder started to hurt really hurt. Afterwards I had limited range of movement and whenever I move my arm upwards about over my chest or to the side almost at all, my arm kind of pops and has a jolt of pain. Today, 5 days after my injury my neck has been starting to ache and is getting worse over night.