What did I do to my ear?

Playing volleyball today, I ran into a teammate's elbow, and hit her with my jaw. It was really hard and the moment I did it, I felt something almost tear in my ear. It hurts to clench my jaw or to open it more than a little bit or move my jaw laterally. It feels as though there's something connected to my jaw in my ear and every time I move my jaw a lot it tears more. I was wondering if maybe I could have perforated my eardrum or something and what i could do about it. I actually had the same exact pain about six months ago when I got spiked in the head with a volleyball. It got continually better and was totally gone after a week or two. The injury I acquired today seems a little more severe to me, but not way more. Any suggestions? Thanks in advance!