No, I mean, James, where was it hurting?

If it was on the top of your wrist and hand then don't worry about carpal tunnel. Carpal tunnel is when the tendons that run through the underside of your wrist from your palm start giving you problems. I'm not really sure of why it happens, but the tendons will start to wear away at the "tunnels" of cartilage and bone that surround them.

So if it was the top of your wrist, then it's probably just a repetitive strain. I've had this RSI before in my hands from playing guitar and piano, but if I just rest them for a while they're ok.