help - overheating

I was diagnosed with POTS a few months ago and have the typical symptoms of heart rate spiking after even stretching in bed. but lately I’ve been having these hot flashes where my face gets super flushed and warm to the touch and I feel overheated and my heart rate spikes up to 120s/130s at rest.

I have a cardio f/u in a few weeks and want to bring this to his attention but am not sure if this is cardio related, POTS, dysautonomia, MCAS (haven’t been diagnosed but looking into it) etc and wondered if this was something any of you experienced.