Poor Oreo! I'm so sorry and I know that words will not help heal your sorrow. You did the best for Oreo throughout his life. He would die anyway in the state that he is in, and since it is hard to find a cure for this, I hope you are doing what's best to end his suffering. Give him lots and lots of last day treats, hugs, love, and best wishes on his journey back to God, on his very last day. I'm so sorry!!!!!