I have the human form of it since 1987. I don't go out and I can't drive. I live a nightmare each and everyday. I walk like I am drunk and I fall from the vertigo, at times crawling to the bathroom. If she is not better in soon she will not get better, take her out of her suffering and put her down, she lived a long life. I am not trying to be mean I am just telling you how I would feel. I know she is your baby but if it is anything like the human form which it sounds like it is more fair to her to let her go then to keep her around because you want her. If they could put humans down when they suffer with vertigo as debitating as mine I would be the first to volunteer.