I have not done well in the past in such heat, though we are having record high temps right now, unseen for many years. Interestingly, I discovered quite by chance here on PC that my antidepressant medication can contribute to heat intolerance, and that was one of my primary reasons for starting to wean off it. I'm still just breaking the 40 mg. Paxil tabs in half for over three months now, but I swear that I am better in the heat on this lesser dose! For several years I did the art/craft fairs and finally gave it up because the heat made me so ill (all the while on SSRI med.)
Patty