It seems like a lot of kids in my neighborhood has been diagnosed with it so has been our minds. Anyway, we were at Legoland and my 4 year old told us he had to go to the bathroom. I took him and was surprised how long he went. 5 minutes later he told me he had to go again. We ran to the bathroom and he peed for a long time. I thought it was extremely bizarre. 15 minutes later he ran up to my crying because he was on a ride and had to go to the bathroom so bad and couldn't get off so he pee'd his pants. My wife and I started freaking out a little bit. I went the rest of the day concerned and wondering what the heck was going on.
Well come to find out he was sneaking Gatorade from the stroller and was drinking a ton of it because it was hot outside. For some reason the Gatorade goes through him really really fast. Once we switched him from the Gatorade to water he quit peeing so frequently.
Since then if he wants Gatorade we make sure he is close to a bathroom so he doesn't have an accident because it hits that fast.