I have a hen that's 1 1/2 year old. She has been ill since Wednesday. I think it is sour crop, her crop is very sponge feeling and she is not eating. I have tried to give her olive oil, water, and yogurt. She is becoming weak, I'm thinking she needs to eat something. but I do not want to make her worst.I have tried ACV in her water, but some say to use ACV water others say no. Could someone please give me the correct info to help with sour crop.When I pick her up she sounds bubbly. Thanks in advance for any help. Oh! I have checked for egg bounding, I think I feel nothing. Not sure if I know what I'm doing there.