I Am Constantly Hot And Sweaty If I Do Any

I am constantly hot and sweaty if I do any activity . Cannot go out in the summer time to work in yard. get red faced and feel like I am going to combust.
Thyroid in depth tests negative. No ovaries but hot fashes ended years ago with hormone therapy. Hormones don't help now
I can't even put on makeup wtihout seating it off while doing it and i keep my thermostat on 70 with fans