in reply to @ladyaceintx1 I have this same problem, and have been told by my OB/GYN just recently that it is related to the 40 percent weight loss I have experienced. My body cannot regulate its temperature. She has suggested that it could also be hormone related, and suggested I take black cohosh twice daily, as I am unable to take hormones. I thought I was all done with the menopause stuff, but she said some women have hot flashes their entire life. Surprisingly, I will be fine one moment, then incredibly hot the next, or freezing. I am going to give the black cohosh a try to see if I notice any improvement. And to think that I was concerned I would be too cold this winter, weighing just 95 pounds. Occasionally I have to wear layered leggings, but so far I am using much less heat than I did this time last year, so I suppose my "problem" is not so bad afterall. I do wish you the best.