This is very interesting and timely as here in the states a woman died recently from drinking too much water. BUT, the REASON was because she was participating in a radio contest to see who could drink the most without "peeing" (sorry to be vulgar). They drank a lot of water in a short amount of time too.
The
goal was that whoever was the last to pee won the prize. So the key is, you can drink a ton of water but you need to allow your
body alleviate the fluids that you drink, not hold it in.
So, go ahead and drink, just make sure you have a toilet handy!