I am always hot: Advice?

I used to be the girl who always needed a sweatshirt because it was too cold. Ever since I got pregnant (6 years ago), that all changed. I’m the girl who sleeps with a fan all year round. I had my AC and fan going two weeks ago. I cannot stand to be hot. Are there any other momma’s like me out there? I’m a few years shy of 40. Am I possibly going thru early changes? I cannot regulate my body temperature for the life of me.