Okay, have you been using your left hand extensively? Or, more to the point, your left wrist? It could be some kind of RSI, like carpal tunnel or inflammation of the ulnar nerve. (The fact that neither your thumb nor pinky are affected seems to contradict that, though.)
In any case, numbness in the extremities could be from something as small as an RSI- treat with ice and corticosteroids- or as bad as some kind of peripheral nerve problem. Seriously, get it looked at.
Updated On: 10/10/06 at 01:00 PM