I just discovered our 1 year old black sex link hen has yellowish liquid dripping from her beak and she has very liquidy diarrhea. She is still eating and drinking (not very much) but she is very lethargic and sits in one place for long periods of time. She was sitting hunched up and i scooted her out towards the food and she walked right over and started eating. Is there anything i can give her? Antibiotics or something?