I feel like crap tonight, but I know why. I was in a seminar today for 7 hours and it had to be at least 75 in the room. I had on short sleeves, but I was still so hot I wanted to puke. The teacher wouldnt adjust the air even though everyone was hot. She told us to just wear layers tomorrow so we can take things off as needed. My head is pounding. I had gatorade with me and drank 2 of the 32 oz bottles, but I still feel dehydrated. Hope you feel better soon.