Oh yeah...the MS thermostat thing. We all seem to have our own version. My extremities can be cold and perspiring while the body is overly warm. I think that some of it is a stress response affecting metabolic rate. I've noticed that my BP and pulse rate are often very low when that is going on.

The body can be cold all over before bed and then a few minutes after laying down, off come some of the covers.
Epsom salt baths tend to even things out for me for a short term fix.

I also take coconut oil and that too seems to help in keeping the extremities warm. It does increase the metabolic rate, so if the body is already too hot, removing some clothes is the trade off.

I also keep my furnace thermostat below 60 F, because if it is any higher than that, body temp regulation issues and MS symptoms are worse. Even in the depths of winter with outdoor temps well below freezing here, my front door is often partially open and the furnace is turned way down.
The thermostat shows that it is 54 F in my living room right now, the door is open and I'm still warm.
Weird.

With love, Erika