Bad Wrist Pains! Any help?

For the past 3 weeks I have been playing tennis. I took a week off to go to Dallas, Texas. When I came back today and played tennis again my wrist was hurting and won't stop. It's been 6 hours since my practice and it's hurting still. When I twist my wrist it hurts, BAD. There's loud cracking sounds when I rotate my wrist. I have never hurt my wrist before and I don't know what to do. I also play softball and it hurts when I play. Can anyone help? Would stabilizing my wrist help? My sister has a splint, and my other sister has a cast thing. It's a half cast though. Should I just put an ACE Bandage on? Should I just suck it up and keep playing? Help please!! :))