From what I’ve read I think my girl has egg yolk peritonitis. Symptoms are waddling, tail down, upright posture and now very weak and not eat or drinking much if at all. Two nights ago I noticed she wasnt up on the roost, so yesterday after observing her I put her in a pack and play in the garage. Our vet doesn’t treat chickens. Is there anything I can do at home? If so and she recovers is she more prone to this now? Or should I just put her out of her misery?