Do the same thing, will be talking with someone and maybe getting a little anxious and I'll start getting hot, ears/face. Happens sometimes when I am out in public...But at night it's hot flashes, sweating and wakes me up..have extensive blood work done and heart tests, do have sinus tachacardia (just diagnosed) so am on beta blocker, take an zanex at bedtime, am also on LO dose premarin. I also have the dizziness but don't know what to blame that on, medications or something else. Just get so tired of it !!!!