Bad news ladies. Research is now showing that hot flashes can last into our 60's and 70's. SO annoying. I've read it could even last until our 80's. Your hypothalamus if it senses your body is too hot, will send the hot flash to cool you down (the sweating and whatnot that happens with it). However, there could be other things involved such as hypertension, diabetes and anxiety. When is the last time you had a physical?
Hello, actually, you can experience "Hot flashes" many many years after a hysterectomy or after regular menopause. I stopped my period around the age of 56 or 57 and to this day, I still have them once in a while, I am now 63. They are miserable.
I am not sure why they only for you in the morning, possibly due to anxiety of having them and expecting them, I would ask your gyn or GP about this, perhaps they can shed some light on it.