It seems like she was really bad (when I first saw her that way, it reminded me of an animal or person who'd suffered a stroke) for at least a week...maybe a day or two more. Then she noticeably began to improve. She still looks horrible, but is totally back to her old self now (appx. 3 weeks later). Looking back, I know when she started to feel sick, because she's a friendly bird, but not a cuddler. I remember right before she got so down, she chased one of my chicks off my lap so that she could be petted and made over - that was NOT like her at all.
Is your girl a BR, a dom., or what??? I read an earlier post (here on your thread) about another barred rock that got hit hard...