It's a "sensory issue". Folks out there who know about this "thing" in my head might know what I'm talking about.

I have times (last night) when I feel like I want to crawl out of my skin. The skin on my feet especially is overly-sensitive. I feel every little wrinkle in my sheets and I end up having to remake my bed from the mattress up (three times).

This is not helpful for a good night's sleep.