I just got ducks for the first time, they are about 9 weeks old. I am a feed specialist at Tractor Supply so I'm pretty well acquainted with animal feed, especially poultry. My little one, Taco, is acting strange. She isn't walking right and is stumbling. She is also opening her mouth but is not making any sound. Her poops are basically water, not even the slightest bit brown and no consistency. What can i do for her?