First of all, I want to welcome you to SR.
As I'm sure you have read,we are not allowed to give medical advice here, however, what I am sharing is from experience only. Carpal Tunnel can manifest it's self that way too. Seems like I had about 6 months or so into my Recovery when numbing, tingling, pain would wake me up several times throughout the night. It was the strangest thing, my pinky and ring finger on each hand felt completely numb but it was a terrible pain as well. I went to my Dr. after a few weeks of this and she suggested that I wear splints at night to keep my wrist straight. What was happening was when I fell asleep, I was bending my hands at the wrist, closing off the Carpal Tunnel which has nerves in it. . . therefore I had the tingling and pain. I wore the splints for about a year and they both eventually got better.
Again, if it continues, see your Dr.
I just had a thought, is this your "beer drinking" hand? Maybe someone is trying to tell you something.
God Bless,
Judy