Our old cat (15) has just been diagnosed with stage 1 kidney disease. She's been drinking loads and had a couple of delightful pissing on the bed (with me in it) episodes. Vet did blood and urine tests and she has a UTI (antibiotics for that) and stage 1 kidney disease. I asked what the prognosis was but didn't get much of a sense of what it really meant. Will she get worse quickly do you think? Or could she go on for years?