I have a 2 month old pullet that got trampled by the others. She tries to stand but her legs keep buckling. She flaps her wings for balance and can take a few steps that way. I have reviewed the symptoms for mareks and no other symptoms seem to apply. I separated her with another smaller pullet for company. She is eating and drinking well, just sits in front of the food and water to do so. I just dont know what to do for her. Any suggestions?