Hello So I Injured My Right Forearm Playing Basketball. The

Hello so I injured my right forearm playing basketball. The next day is was all swollen and hurting towards my elbow, but not the elbow. The swelling has died down but now I have a bruise on the inner part of my wrist. My arm will be totally normal one second and then I will be in total pain for about 10-15 seconds then it will stop. This happens every 2-3 minutes. I don't know what is going on.