Hello, My little brown hen seems to have either a sour crop, She used to be my best egg layer, but hasnt layed in 4 to 5 days now. She either has appetite loss, or is having trouble eating. Turns her nose up to treats. She has been eating some grit today and i put apple cider vinegar in the water. Occasionally, she drools a little, but not often. She goes from standing around puffed up , to seeming fine. ? Her crop is kind of ballooned up land soft. And this morning she was doing this wierd thing with her neck. Like she was trying to move something around . Any suggestions? She's my leader hen!