I remember my first time in Anaheim, I had turned on the sink to brush my teeth that night. I was in a room with a friend, and I had to ask, "Who farted?"
Seriously it was the sink water! We referred to it as the "Anaheim Butt Water." I got a little queazy too, and some locals told me that it was probalby the water. A lot of it is what you are used to though. We have very high-quality waterat home, and I don't find the Orlando water to be too bad - it's worse than here though, but it doesn't make me sick.