My chicken snowball is feeling bad! She has little energy and haven’t been walking around with the rest of the flock. She has been sitting down in the run. She has a little bit of an open mouth but she has been a sneezed since birth (quite literally, she has always had that trait). She is still talking to me and I think eating. Noticed today. She is a 7 month old EE pullet who has not started laying. PLEASE HELP!!!