When I saw you has replied, I was afraid to read. HUGGLES HUN!
You know, I've been thinking, and since the rest hasn't come down with anything, and she WAS with them before and when she got sick, I think I would at least let her be with a calm hen, if not just put her back with the flock. When I tried seperating my 6 wk old EE, she wouldn't walk around, eat or drink! When I put her back, she ran straight for the food and water, and her two friends ran up to welcome her home, and they've been keeping a close check on her. If another chick starts to pick on her, the two others gang up on it!
Whatever you decide...you're in my thoughts and prayers!