Handball elbow injury? HELP?

I haven't been playing for very long but I'm in love with this sport. Usually I use a sidestroke power serve and I think my elbow has been taking the force of my hits. I have been feeling pain in my elbow for the past 2 weeks whenever I attempt to play, lift things, or even dribble a basketball. I don't think it's extremely serious, but I do feel quite a bit of pain when hitting the ball which has forced me to stop playing for a few days. I only feel it when doing one of the previously mentioned activities, I don't feel pain any other times. Please give me an idea of what the problem is and what I can do to fix it fast. I can't go long without playing handball.