Chicken with stroke
It is up to you but honestly it sounds as if she has some internal problems which, unless you determine the cause, are going to result in an early death for her. How old is she? If you have a vet who can help you decide, that would be the way I would go. Otherwise, it's really up to you. what breed is she? Certain breeds have a tendency towards ascites, it seems to be some sort of genetic thing. Whichever way you go, it sounds as if she is greatly loved and I'm sure she knows and she will be as comfortable as possible. Many people feel that as long as there is life there's hope, and if she doesn't seem to be suffering, you can always look at it that way too. Good luck with her.