I have also had a hysterectomy when i was young (24). I have and still am going thru those darn hot flashes. I would rather have a migrane. it is not only annoying but uncomfy as well. when they hit, they are very severe for a while. then you get cold. I was on hormone treatment for a long time. both patches and pills. i gave up on them due to the scares about heart problems along with a wild list of other things. I thought I would just rough it. so rough it i did. I was told it could last 10 yrs. My sister-in-law takes Centrum silver ( for old ladies). she said it decreased her hot flashes. I go to bed with a glass of ice water on my night stand. sips of ice water, when it wakes you, helps a little.
Here in south Texas I am not sure if it is a hot flash or the weather. LOL. So... my other suggestion is move south .
Hope the "power surges" are not too severe your you all.