Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you today. I do apologize that your question was not answered before. Different experts come online at various times; I just came online, read about your situation, and wanted to help.
Again I do apologize that my colleagues could not aid you sooner. If you would still like assistance, can you tell me:
Is she walking into things?
Any tremors, seizures, circling, or head tilting?
If you drop a cotton ball (since it has no odor or sound) can her eyes follow it's fall?
Are her pupils widely dilated?
Any access to toxins, chemicals, drugs, plants, etc?