Numbness in Palm but not in the fingers (Carpal Tunnel?)?

I boxed at the gym a week ago. I have this numb feeling in my palm ever since. No other pain in the fingers or anywhere else. I thought of carpal tunnel first since I work on a computer all day but that does not really seem to fight as I don't have any of the other symptoms. Any idea what this could be? It's not painfull just rather anoying. Thanks!