Jaw Pain :( please help!?

So recently someone accidently smoked my in the face with a ball, the ball hit me right on my lower jaw, (right side). And the force made my jaw swing to the left. Now a week later, the pain still hasnt resided, Every once in a while, if i chew or yawn or move my jaw from side to side a pain builds up until it really hurts. This only happens about once a day. I've prodded around the back of my mouth, and nothing seems swollen but it really hurts. It isnt unbearable as i can still move my mouth without pain for most of the day, but can someone please help me?