This exact thing has happened to me many times. felt like being electrified.
Buzz is a good description.
Its special and scary, and I never knew what it was.
It happens especially if I read highly spritual texts for some reason.
I never thought these texts had any power (I hardly understand them) until this happened everytime I read them, and never happened before that.
Sometimes when this happens it also sets off electronic devices, So I started to unplug the strereo before going to sleep...
Whenever I tried to describe this with friends they had no idea what I was on about (and I told quite a few people)
So its great that you shared this -thanks!