I'm a person who almost constantly feels hot. I think unconsciously I realized that if I roll the sleeves up on my long sleeve oxfords (when I have to wear them) I feel much more comfortable, but could never figure out why it made such a difference. I suppose it just helped expose more area near my hands and cool me off.
You and I have the same problem; even in the winter, I rarely need anywhere near the amount of clothing that people around me seem to.
What's really annoying here in Tokyo is that, during the winter, the thermostat in every office, train, and department store is set to about thirty-five million degrees centigrade.
I have to strip off pretty much everything I'm wearing whenever I transition from the outside to the inside, and then put it all back on again when I do the reverse. Amazingly annoying.
What's helped me out a lot are Marmot's Gore-Tex jackets. Because they're breathable and have vents, I can just unzip a bit and cool down rapidly. Admittedly, they don't look as good with a dress shirt as a nicely-fitted suit, but it's a compromise that keeps me from bursting into flame.
No, normal BP. However, as I've gotten older it isn't as bad (and I've started to become more sensitive to cold), but I still find myself hot and sweaty when everybody around me is often fine or cold.
When I was young, it wasn't even a big deal to go out for a while in the middle of winter in a t-shirt, I didn't even own a proper winter coat until I was far into my 20s.
I'd love to have one of these.