One of my girls is in her 1st adult molt, pretty rough one, and shes acting quiet, almost like shes sick. She ate snacks this morning, corn, lettuce and a bit of meatloaf. They're going thru more feed, but this afternoon while having free yard time, she wasn't grazing like the other 2. She's about 21months old, you can see her stressing over her lack of feathers, like she's lost...should I be worried?