I've never actually fainted, but here's something I was taught at martial arts class:
When you're out of breath, *do not* compress your body by bending at the waist or hunching. That just limits the amount of air your lungs can get. Instead, stand up straight and walk around slowly. It's a good idea to put your hands behind your head, inmate-style, to help expand your rib cage and keep your body upright.
The walking helps keep your legs from cramping.
I've used the above exercise in exactly the types of situations you're describing: lungs on fire, hyperventilating, feeling ill.
What a scary experience! Don't let it discourage you from hard rides, but definitely don't let your ego get in the way of knowing when to quit. (That's something I do all the time =/ )



Reply With Quote
When you are pedaling, your legs going round and round, the pumping motion of your legs is assisting your heart in pumping the blood through your body. When you quit suddenly, your heart doesn't have time to take over, your blood pressure drops precipitously and you black out. Did you ever see stars or feel dizzy when you stood up very quickly? Similar things, you just went beyond that point. What bounceswoosh suggested would keep you moving and let you recover bit by bit. In almost any sport, after a hard effort, you will see people cool down before they quit what they were doing. There's definitely a reason for that.
but i was out of shape and in the wrong gear and being stubborn beyond belief. i did get to the top, but i had to stop and rest. i was sitting on the grass beside the street panting like mad and a jogger who just made it up the same hill asked me if i was okay. how embarassing!
in retrospect, i did everything wrong during and after to make it up the hill and then recover. live and learn! and really, instead of a nice woman jogger, it could have been a sexy guy i was embarassed in front of. thank god for small favours!
