I have a white rock about a year old who has been acting lethargic for 4/5 days.Shes wobblely and closes her eyes and shakes her head alot.All the others are fine. We free ranged them last sunday and she was fine.I wonder if she ate something?I know they sprayed the field next to us but she didn't go over there also they've been eating tons of bugs and even baby snakes and frogs(some type of toxin they contain?)She is still eating ,just slow moving and roosting alot-no coughing sneezing some runny poop and throwing up.Can chickens get tic parlysis like dogs maybe i should check for a tic.I know I'm rambleing but shes one of my favorite.Anything I can give her for the vomiting/diarehea??They haven't been around any other chickens and their feed is the same .HELP!!!!