I've found my brain has started to filter it out as noise...just as it has the floaters in my eyes. Only when it's bad, does it register anymore. Now that's just the buzzing...not the burning or zapping. That's much harder to filter.

That being said, I did have one occasion where I had a really strong buzz in my lower leg. It was above and beyond anything I'd had before. It lasted for about 3 days, and then I suddenly got sharp zapping pains that originated in my butt and ran right down through that spot. Then as quickly as that buzzing started in that spot, it stopped.