I have a 2-1/2 year old sex link that started acting a little off a couple of days ago. She is eating very little, but still drinking. She isolates herself from the other hens and just stands with her eyes half shut. No respiratory symptoms, crop is soft and empty, no discharge or anything from her vent. Checked her vent and she is not egg bound. Poops are just watery, with no solid material. Her comb is a little pale and a little shriveled. Any idea? If she is not any better by Mon., I will try to find a vet with some poultry experience. Thanks.