The process of sweating is one you can feel, beyond just the sensation of moisture. I'm more surprised that there are people who can't feel the difference.
Also, sweat has a much different consistency than water.
I'm a warm, sweaty person. Maybe I sweat too often to notice it's happening. I do great in winter though and don't complain about 90F+ days under 20% humidity. Sadly, I live where summers are 90/90
Yeah I don't really feel the difference either. Intriguing. Whether I'm wet from the shower or from sweat, it feels about the same to me. It's only after it's drying that there's an obvious difference to me