Me and my wife bought 10 day-old chicks a week ago and one of them has been acting strange today. When she lays down she goes to her side and seems to have a hard time breathing. Also she is very raspy or crackley in her breathing and sneezes or coughs frequently. when she's standing she doesn't look stable. Stool looks normal and she is eating and I gave her some scrambled egg for a protein boost. She is currently separated from the rest. Any ideas of what this might be and if its ok for her to go back in the main brooder?