I fed my three chickens about 3 cups of chopped onions (uncooked) on Sunday. Not knowing they were bad for them. And they are all three acting normal, eating, drinking and foraging. But my two Orps have very bad dark brown watery diarrhea. Is there anything I can do to help their tummies? Since they are all still acting normal and it's been 5 days im assuming they will be ok? Thank you!!