Why do I throw up?

[sucramdw]

Well I threw up again today during squat variations. When I threw up I found myself instead of wishing I wasn't throwing up, I was trying to trace the physiological and anatomical aspects of my nutrients coming up and out of my mouth.

Could someone explain to me, why exactly working out at such high intensity makes you throw up. What happens in the body?

[XenoWang]

I suspect it's due to the body's natural pH regulation. You've built up so much lactic acid in such a short period of time that the body has no choice but to decrease the body's acid levels from the environment with the most readily available acids- the stomach. I could be totally off though.