Hmm. It's only happened to me once. But that was because the asshole of a coach decided that it would be a fun idea to run in the pouring rain. In our shorts and t's.
Maybe I haven't been training hard enough, because i've never thrown up. I've been so tired that I literally needed help standing up, but i've never had much of an urge to throw up. Or maybe I discounted those times as burps
![Big Grin](/tfp/images/smilies/biggrin.gif)