Oh, man. I didn't realize it was that serious. I'm sorry! At least she's healthyI have a sickly hen that is acting healthy but doesn't look healthy :/
I have a hen like that too. But she is 5 and a half years old, so I think she's probably going to pass away soon. She is really slow and looks sick, but she eats, drinks and jumps up onto the roost just fine.
(I don't think anything is wrong with my account btw. I think it might be yours. :/ About 20 minutes ago my post count was 8,132, and now it's 8,155)