My 8 month old chicken started showing symptoms last Sunday, not moving, eating or drinking. I have her in a crate on our patio with water mixed with apple cider vinegar and food. I checked her vent and all seem normal, so not egg bound. She also has terrible diarrhea. I checked her crop and it was soft like a hackey sack, so I gave her olive oil and that got her drinking the water so that was good. Now almost 1 week later and she is still sick. Lays in the crate all day with her eyes closed. Her comb is still very red. Not sure what it could be, does anyone have any ideas?? She is so weak and can barely stand. Her head seems to be bobbing up and down too.