Skyhag, yes I do get the numbness thing on the tip of my tongue, and occasionally on my lips, I definitely have that symptom
. Also, I do get the twitching of my lips
, and I do know what you mean by the teeth chattering thing, even though it's mild, it is there sometimes, and I have experienced that feeling exactly as you describe. In fact, I had that a bit last night at the sleep study, and I thought it might be due to nerves.
The sleep study didn't go too well.