The pumpkin may be working. NO poops on the floor when I got home from work. This usually means he was either able to hold it longer and not go yet OR was able to make it to a litter box. We shall see. I heard Metamusil (psyllium) might also work. I am going to buy some to have on hand.

We too tried special prescription food made especially for intestinal problems. Not much luck.

I think Lizzie hit the nail on the head when she said the tumors are probably causing excess mucas production. I just need to find something to "soak" it up with.