Hi I just got back from trying to find out any info about excessive drinking and not pooping, I did see that if she is egg bound that could be the reason she hasn't pooped. i know hens have to have alot of water to make an egg, but as far as excessive drinking didn't really get anything deffinant about that. Does she act like she is straining? will she eat anything? maybe try her with some yogurt. It has calcium in it which she needs.