Hmm, my throat probably did swell up. *nod*
Yes, but wheat allergies cause ashma too, because it makes the mucus build up in the back of your throat...

I've heard about perfume causing ashma, but once again that is an allergen...
And same with pollen thats released into the atmosphere during a certain season.
Heat and humidity can only irritate ashma that's already there, not cause it.