just joined today, my 1 yr old female buff duck, started walking around yesterday like she was drunk and weak, seemed like she couldn't support herself, she's still eating and drinking, when i put her in the baby pool she just floats around, not too much else, i have to take her back out, as she seems listless and weak, don't know what to do, she was fine yesterday, any suggestions?, she hatched three healthy babies about 3 weeks ago. She's falling over and dragging herself sometimes too?