Anyone else have a screwed up thermastat?

Ok, pre-brain explosion I was having hot flashes. I even went to the GYN because I thought I was in early onset metapause(.I am only 37) I was suppose to get my blood drawn the day my brain blew up. Now, I can not get warm. I am always cold, I know its winter and cool but even in the house with the heater on. I wear socks all the time in the house , walk around with a blanket wrapped around me all the time. Does anyone else have this issue, did surgery screw up your thermastat? Will it go away or is this permanent???