My poor little barred rock pullet is awefully lethargic. They had been treated for cocci in the past. No signs or symptoms. The other barred rock is much bigger than her now. She stands around, fluffed up and will eat and engage with the others. Should I get some poly-vit and treat her? Maybe some scrambled eggs? Any thoughts anyone? She's feathered out so she's developing, poor thing, she's awefully sweet. Hope I can save her.