Noca,
Yes and no. As you might know, the HH isn't constant but gets worse when you're engaged in doing something, so for instance, playing sports, driving a car, having an exam, having an interview. Every single situation where every human has heightened awareness...I don't feel my emotions at that point are any different than the next guy's, but still, I'm sweating like crazy, it's like the normal sweating everyone gets is just amplified for some reason.
So, yes, playing sports I'm sweating heavily from the usual HH places, but it isn't any worse than, say, driving a car, going out etc...Also, from places not affected by HH (which in my case is unfortunately just my chest arms and face), I'm not sweating more than anyone else, if anything maybe even less. That is not to say my face doesn't sweat, but I don't feel it's more than normal and it's a different kind of sweat (probably just normal apocrine sweating).