As everyone with chickens understands, it's always one thing or another. I had a chicken acting slightly off recently. I separated her and have been taking care of her as she slowly declines. She is about a year old Easter Egger. Was laying last year but still hasn't started laying again for the season. Her original symptom was lethargic heavy breathing, sometimes with beak open. You could see her whole body breathing in and out. My first thought was egg-bound or respiratory illness, couldn't feel anything off or any egg in there, so I began treating her and the whole flock with tetracycline. It's been 5 days and no change or improvement. She hasn't wanted anything to do with her food or water but was still aware enough to know a mealworm when offered. Since yesterday she's downhill and another hen in the coop is acting slightly off to me (usually is a spazz, but is standing quietly). So I'm looking for ideas on what to treat them with/what could be possibly going on. The stool is runny yellowish white with green thicker portions. No sign of blood in the stool. I think I'm going to start treating for Cocci just in case... maybe worm as well? Let me know what you think!!