Yup, @Mountaindewed, that's exactly what a brain zap feels like. It sometimes happens really often, like several times per minute and sometimes just a few seconds apart.

It can last for hours.

What helps me is to reduce stimulus as much as I can. Hold still, avoid walking or moving much, maybe close my eyes, avoid TV. Strangely, I can read on my phone when that happens. I think that could be because I can control the pace at which I read.

The zapps will eventually pass and it'll be slow but one day you'll notice that they're either gone or much less frequent.