Wrist Injury Diagnosis

Hi, a couple days ago I hit my hand/wrist off a desk pretty hard. When I did it I got the woozy/dizzy feeling associated with a broken bone, and thought I had re-broken my hand (I broke my fifth metacarpal in my right hand about two years ago). Upon a thorough self examination of the bone, I determined that I hadn't broken it, but I noted that my pinkie and ring fingers were slightly numb, as if they were asleep. Today, I noticed that putting pressure on a certain spot on the side of my wrist (roughly where the ulna and carpals meet) causes some discomfort (not pain exactly) which I can feel locally and in the webbing between my pinky and ring finger. Rotating my wrist with pressure on the spot intensifies the feeling slightly but not much. There is no lingering pain or discomfort unless I play with the spot for too long. Not that I have full range of motion with my wrist and fingers, and I have yet to find a position or movement of my hand that causes any pain. I'd like a professional or at least educated opinion as to what I've done and what I should do about it. My hands are my life. I'm a guitarist, artist, and body man, my life would be over without my hands. Thank you for your help.