I'm new at this. We have 7 pullets ranging from 9 weeks to about 16 weeks. The olive egger has always been high energy and very chirpy. Yesterday evening herbed was kind of dropping while she was moving around the pen. I quarantine tuned her and observed her for a couple of hours. She got extremely worse. She is just laying there now. I gave her some water from a dropper. I don't know what to do now.