Hopefully the UTI meds will help. Though, it does seem like patching up one problem leads to another problem. I wonder if she were an outdoor cat how she would react? (Of course, I don't mean putting her outdoors). But growing up in the country, whenever I had a cat with medical problems he/she would wander off into the woods and we would never see them again.
We would always say that they went away to die because they were generally always very close to the house, then they would just go away, like they were walking towards the light.
Devastating to think about PTS your Puddy. I just wonder if patching up each problem is really enhancing her quality of life? I do hope the UTI meds and adding a day between sub-q will help.