Well honestly,
I'll give my honest opinion, and please dont flame me for this.
TOT is among my top 2 favorite rides. However, as Disneyholics and with as much as we know, when someone on these boards asks about TOT, we should always tell them how much we love it, but we also should, as responsible people, let them know that it isn't something that everyone may like.
i've seen people on here talking it up as no big deal. I did that as well until now. I was one that even told my 52 year old dad last week that it was nothing, no big deal. I really didnt think it was. My dad was having trouble breathing after it was over and was seriously concerned for his health, and he's healthy. He said he really started worrying that if the ride didn't end before it did that he was going to have some big problems. I think he would have serioulsy had a heart attack.
Some people do well on rollercoasters but may not do well free-falling. It's a totally different experience. Some people may do every single thrill ride, but some people's bodies react differently when they free fall. Some people's minds take over their own sense of control and go sort of into instinct mode and the body reacts differently.
I think the heat can have alot to do with overall reactions. People's bodies if not well hydrated and without proper nutrition can react harshly to even small effects on the body and mind.
It could be anything, but after this and after my dad's experience, I hope well all realize that anyone can react to things incredibly different than we do and we should properly give our opinion of the ride, along with reactions that others, different than ourselves may experience.