I hope my brother-in-uniform Taylor gets well soon and comes back online. I know many public safety folks have to constantly worry about heat exhaustion/stroke as a result of the hot temperatures (cops because of their bulletproof gear and firefighters for the turnout gear they wear.)
I had a less serious experience during a training session last week in 90 degree weather with 90% humidity. This was the third 'exercise' of the evening and halfway through, I just couldn't catch my breath. Stepped out, sat down, got cold water and cooled off.
It's not funny, this stuff.. and worse still, it's harder when you can't cool down.
You're in my prayers bro.