I'm 17 weeks, have been super hot since early 1st trimester. I used to always be a very cold person too so has been strange having people around me complaining its freezing indoors and I feel like I'm in a sauna. A midwife friend recently advised me to get a thermometer to check my body temp doesn't go over 37.5, could be worth looking into one.
This happened to me too but went after a few weeks. I was having to sleep with the windows open in October