I had my worst experience with weather in just the past couple weeks. The dewpoints moved up into the mid 80s, which was compared to the Brazilian rain forest....and I live in Mn! I didnt step one foot outside, but even the air conditioning didnt help. I couldn't eat anything, and even drinking water was hard for me too.

I woke up in the middle of the night two weeks ago, feeling nauseous and thought I would get sick.... once I got to my bedroom door, I lost my sense of balance & coordination and slammed into a couple door jams before I ended up face down in the hallway! I have never had that happen before! I must have layed on the floor 10 or so mins before crawling back to my bed.
It was very scary...over the next few days, bruises kept showing up. Both my shoulders and kneecaps turned purple! I still have rug-burn scabs on my elbows too.
Weather is still touchy here....but better than it was. I dont ever recall having such oppressive weather in mn....we get into low 100s, but this was crazy!
I dont know how I could have prepared myself....since it had to have been the barametric pressure!