Trudy: Update

I don't really know what to say about Trudy without sounding melodramatic, but she had another really bad episode on Sunday (after we got home from the fair) and an emergency appointment with the vet took place on Monday. She is on medication but her balance and ability to walk has been compromised this time and I am fearful. This week has been filled with emotion as I try to reconcile the debate of quality vs. quantity and when is it time to let go? How do you make this kind of decision? How long is the right amount of time to wait and see? How much pain is she in and how much more can she take? My "mommy" sense is telling me that hard decisions are going to be needed soon and my heart is breaking.