If you have never experienced a hormonal hot flash, it's quite the experience.
I remember vividly my first real "flash" as I was sitting at a favorite sports bar (of course) of mine enjoying a drink and watching the big screen television. All of the sudden, I felt like I was internally combusting. I wondered if the whole world would notice. They didn't seem to and fairly quickly I returned to normal (?) and began to realize I had just experienced my first hot flash. No wonder all the cis woman of middle age I knew talked about their overheating.
All of a sudden, this morning, I experienced another hot flash and I am not completely sure why. I have not changed any of my HRT meds I have been on for many months now, so meds should not be an issue. Similar to my first case of heat, the whole episode probably only lasted an hour or so.
I will have to see if it happens again as I have another visit coming up in October with my endocrinologist so I am sure she will check my hormonal levels again anyway.
As with mammograms, I see hot flashes as a rite of passage into being a more physical transgender woman. I say physical because I feel mentally I have always been trans. Plus, all of this temperature issue leads me to point out the changes I went through in relating to the weather as I hormonally transitioned. I found I became colder quicker and stayed that way.
I also recognize though that hot flashes could be an issue with my HRT meds. An issue I will have to discuss with my Doc if it happens again.