Help ,I'm losing my mind

So far, I have spoken to 3 doctors online, but nothing has happened. I went to a vet who specializes in dogs and cats, but nothing has happened. After searching around, I found a vet who specializes in birds. He made an appointment for two days later. Nelly is yellow, lethargic, and has diarrhea. Please pray for Nelly, and if you know a good doctor, let me know.(Those scars on her face also fought with Kona)