It's most likely normal and due to an increase in your metabolism with pregnancy. I get hot too. But I thought I'd mention that you can also "heat up" if your blood sugars are too high and you are an undiagnosed type 2 diabetic or have gestational diabetes. So if you have other symptoms during the day and haven't done your gestational diabetes drink test yet that is also a possibility. That happened to me with my first pregnancy.
Mine too, I'm super hot at night and have night sweats too. I didn't do this with the first one.
Lol. Same here! My hubby says the same thing. It's like I'm on fire. He says when I cuddle up against him he wakes up from the heat and sweat.