I teach dance classes, and Zumba, and Fitsteps classes, and the last couple of years or so, I've noticed when I start to sweat at class that I get a strange smell, not easy to describe, but almost like wheat pack that's been microwaved (if you know what I mean?)
I feel very self conscious of it, and not easy to keep away from people at the end of class as I like to chat to my ladies and check they are happy and have enjoyed their workout.
I use deodorant, and always spray a bit of pervume on my clothing before class.
Just not nice, it's not like BO smell, just unusual smell