Hi Valerie, not to brag on myself cause I hate that kinda stuff, but I’m in very good shape, I guess because I am very active all of the time. So that  theory doesn’t  work here. Also what about all of the large people in class that are sweating terribly? The (sweating because your in shape) doesn’t make sense.  In my class everyone is sweating (skinnies and chubbies) alike. I just sweat on my lower back, I found that wiping my arms and legs helps me to cool off. I will stick to the idea that the fluid retaining Dex is causing my dilemma, I like that idea better..LOL