i banged my elbow over a week ago. There was little pain after the initial hit, but the elbow swelled like I had a tennis ball under my skin. The following day I had a bruise extending to my wrist and up to my armpit. Little pain,some tenderness in the forearm and swelling at the wrist. Now the swelling has subsided and the huge dark bruise is fading,but I'm getting pain, mostly at night,in cycles, that is intense enough to wake me.