answer:It happens to me off and on. It seems to occur after over use, like if I ride the bicycle and put weight on my shoulders for a long period of time, for the next couple of days, off and on my fingers will go to sleep or get numb. Or if I am doing a lot of wood carving, holding the power tools. It also happens to my toes after about 5k of running. I don’t know why, I have never gone to the doctor for any of it. It has been going on for a lot of years and I am still here to tell the tale so I don’t worry about it. Hope someone has a more useful answer, maybe it will help me too.