Week-long hand numbness after bike ride

Last weekend (June 5) I rode for 42 miles on the bike. About mile 30 I noticed that the fingers on my right hand were not strong enough to push the shifter. I had to use the side of my hand (almost the knuckles) to shift.

I didn't feel the numbness until I got home. I was trying to cup water with my hands in the shower and could not bring my ring and middle finger together. I also noticed that the side and bottom of my hand from the base of the pinky to my wrist was numb, and I had trouble keeping my fingers straight and together at the same time.

So it's been a week now, and things improved but not much. The side of my hand still feels numb and I still can't completely straighten out my fingers and keep them together at the same time. It's a real problem in the pull. The water just goes straight through the fingers.

I think I am going to see a doc this week, but thought I'd ask here. Any ideas?

Typing, while it was difficult at the beginning of the week, is obviously not a problem anymore.