You may not have to make the decision, as she may make it for you. I lost my sixteen year old in March. He had no health problems up until about three days prior. I had the "talk" with him also. Told him I loved him, that he'd been a good boy, and that he could go when he wanted. I just asked him to not make me have to make the decision. I took him to the vet the next morning, Wednesday, and he died on Monday. We were giving him fluids to try to help eliminate the nitrogen in his system, but he finally gave out. I learned eleven days later, when Menu Foods announced the recall, that the food I had been feeding him was recalled. It is so very hard to let them go. I know you don't want to watch her suffer. No one does. Whatever happens, just know that you both are in my thoughts and prayers. Please keep us updated.{{{HUGS}}}