I have had back problems since I was a teenager and I will get those electrical shock sensations occasionally...especially when under stress.
I have also had the "numbness of my lower lip and chin, but not much with my tongue. I just chalk it up to anxiety because that can do it, too. It's gone on for so long that I don't worry about it but I sure was nervous about it when it first happened. But, it went away once I went to bed and to sleep. I was fine the next morning. But, if this is staying numb, I'd definitely look into it.
It's anxiety that can cause numbness and tingling around my mouth and chin. I was checked out...especially my blood pressure...so I know that's what's causing this in me.
Post Edited (crazykitty) : 9/15/2009 6:50:13 PM (GMT-6)