I would concentrate on getting the Corid water in them mostly. If it is cocci, the gut is very painful and not working well--that is why they stop eating. When the Corid starts working, hopefully you should see some improvement. Can you call your vet and ask the clerk if there was a diagnosis on the chart? If the vet thought she had air sacculitis, there could be an E.coli infection which can cause bright yellow or yellow-green stools. Hopefully you are just dealing with cocci which is bad enough.