Could be Vibration White Finger. Have you been using a lot of power tools lately?
By the way, I've always thought Vibration White Finger would have been an ace name for an Acid Jazz band.
I was using an electric sander at the weekend and had a tingling sensation in my hand for about 30 mins afterwards. It was quite pleasant. I also let it brush against my testes a little bit, which was a quite magnificent sensation, I can tell you