I have a 2 month old polish pullet that is limping! Yesterday was the first time I noticed it.I have 3 other chicks that are her age.She was just sitting around while her friends were walking around.Last night instead of putting her out in the chicken coop with the big chickens,I put her and one of her friends in a box in my house.She was doing about the same this morning,none worse,none better.He only symptoms are sitting around a lot, and limping. I already looked at her foot,I did not see anything wrong.What could be wrong with her? And also,she seems to have lost her appetite, but she is still drinking water.