I'm already on gabapentin for TN, its been a miracle drug for me.

I also had the paresthesias with the attack that got me my diagnosis. That's different than this though. With that, I would sit down on cold tile and it would feel like I just sat on a pit of lava. It was really weird. Thankfully that faded.

You're right, this seems completely unrelated to the environment. It seems perceptual, but then I sweat, shiver, etc. Who knows? It is just so irritating because its impacting my sleep. I'll layer up, fall asleep, and wake up in sweat. Take the layers off, go back to sleep, and wake up shivering. There's just no winning since its just swing from hot to cold to hot, and sometimes both at once! I could deal with it fine if I could just sleep through it. Sigh...

I have a long scheduled neuro appointment early next month. I'm definitely going to bring this up.