Older pullets can still get coccidiosis from new chickens added to the ground. You may want to treat her for possible coccidiosis with Corid (amprollium) in the water. Dosage is 2 tsp of the liquid Corid or 1.5 tsp of the powder per gallon of water for 5-7 days. Symptoms of coccidiosis are lethargy, puffing up, not eating, diarrhea or blood in stools, and ruffled neck feathers. Try getting her to eat some scrambled egg, buttermilk, or wet feed. Worms may also be a problem. I would only treat for worms or cocci, and wait a couple of days between medicines.still not sure what is going on with her.. like i said,she seems okay so far this morning..but then she has her own food and water too. I wonder if it has anything to do with just stress. 2 of her flock mates just starting laying this week. She is not quite ready to lay yet, her comb isnt nearly as big or red as any of the others. could she be stressed and confused with all the commotion? i dont know, i am probably putting human emotions on a chicken.. lol. i think i will keep her in the rest of the day today to keep an eye on her, and hopefully she will continue to improve. We have 2 feeding and water stations, so i would hope she could at least eat or drink somewhere.