{{{{{Ozzie}}}}}

I've been hot all my life, regardless of my weight being up or down, even in cold climates. And why is it in marriages there seems to be one "hot person" and one "cold person" and getting the temperature right at home is a major struggle.

Ok, digressing a bit. My first thought was peri-menopause as well. All the other possibilities already mentioned could be the case as well.