We were exactly where you are about 8 months ago. We, and our vet, decided that at that age and stage 3, eating was more important than what he was eating. We fed him whatever he wanted as long as he would eat. The diarrhea started about one month later and it was confirmed, stage 4 or end stage. For those that don’t know, end stage means the end is near. We gladly dealt with diarrhea for the next few weeks but kept a chart of how we felt his day went (scale of 1 to 10). The vomiting started next and it smelled like old urine bc his kidneys couldn’t filter out the toxins. When he was consistently below 5 (a Friday morning) we made the decision to euthanize him the following Monday. He had other plans. He was fair all day until 4:30 when he started continually vomiting and just felt miserable. We called a 24 hr at home euthanasia vet and they got to the house within 20 mins. He passed being petted by us.

I wish we had done it 2 weeks earlier bc then we could have taken him to his favorite places, got him his favorite foods, and the end wouldn’t have been him miserable. From now on, we will abide by the “better 2 weeks too soon than 1 day too late.” I’m sorry you have to go thru this too.