My 9yr old dog has been diagnosed with stage 2 kidney failure 4 days ago. Vet has put him on Hills k/d, and Pronefra. My vet said he could stay in this stage for quite awhile if we keep up on this diet change and meds. But is that realistic? What are your thoughts and experiences with this... I really need to know what to expect.. I know it's going to get worse and I'm scared.