Yes, I get that sensation especially when I'm having a relapse or pseudoflare. I also get what I call itchy and twitchy, or itchy insomnia. It seems kind of related to restless leg syndrome. Like it's worse when I lay down and try to relax. I'll be starting to doze off, and my whole body will jerk and startle, and then I'll lay there and twitch here, there, and everywhere, with random itches thrown in for good measure.

Nerve diseases are nuts!