I have a duck that can't walk all of the sudden. It's been about a week that it started. She would just hop like she had a sprain and then yesterday she stopped walking all together. Her legs move, but she can't stand or hold her weight. She has been just been laying around, and pushes herself where she wants to go. She hasn't been eating or drinking much. About the same time that all this started I noticed one of her eyes was and is still foaming. I started her on sav a chick electrolytes and probiotics today but she hasn't been drinking it. Does anyone have any idea what might be wrong with her? I really don't want to have to put her down, but it's getting to that point.... Please help!