I'm so sorry about your girl. I don't know what the problem may be but can share my recent experience. A few months ago, I found one of my boys feeling very poorly in the morning. I took him inside, and within an hour or two he could no longer walk or stand. When he tried, he flopped around pathetically and got stuck on his back. It was really hard to watch. I suspected a serious head injury so kept him in a covered cage with a heater. A day or two later, I could tell he hadn't been eating or drinking, so I started feeding him with a syringe. I'm glad to hear your girl is eating and drinking on her own, so I won't go into more detail but can share if it becomes necessary. I spoke with an avian vet online who recommended one drop of children's Motrin (liquid aspirin) twice a day to help with his pain and any body inflammation, but she noted that it would not reduce brain swelling. For a while it was very bad, he couldn't hold his head up and would sometimes get stuck in a twisted position. I think one side of his body was more seriously affected, like someone who had a brain stroke. After about 3-4 weeks, he recovered enough to start getting his legs under him. (At that point he developed a respiratory infection, which is a whole other story). Today he is back on his feet. Long story short, it took a lot of time and patience and often felt hopeless, but he did pull through. Best wishes to you and your girl.