Most likely it has everything to do with one's mindset and the climate they originally grew up in. Having spent most of my life in a part of the world that reaches 98% humidity during most days in the summer, I'm really quite happy to be somewhere dryer.
But yes, heat all around can be bad, and dry heat especially will kill you if you aren't used to it. I do hope you're taking the suggestion to stay hydrated seriously, darling. A cool cloth on the back of your neck can help, as well.
I'm extremely allergic to sweat, yes. It makes me look just dreadful.