I just walked back in from a 2 hour ride in NW Florida, Weather Chanel online here shows 93 degrees "feels like 98". Coming back a few minutes ago, I went a 4-5 mile stretch where I was running dead with the wind, usually love that, not this time; thought I was going to cook.

About two years ago, was doing a outdoors building project around the house with temps in the low 100's and humidities about 70-80%. Got dizzy and tried to work through it. Then it got really bad but I made it into the shower. Took me a good part of a week to recover.