hi lisa,
i know exactly what you're going through. i lost my dog flurry yesterday, and it seemed so sudden. he was 9 and a half years old but was still like a puppy, and everyone was always shocked to hear his age.
flurry has been having a couple of odd symptoms for the past month or so... hesitant to jump off the bed, yelps when he moved his head sometimes, and tuesday night he vomited twice. then yesterday all of a sudden he turn a horrible turn for the worse and my parents rushed him to emergency and they found kidney stones and two tumors... he was bleeding internally and had to be put down.
i am in such a state of shock right now because he acted just like a puppy and i thought i would have him for many more years.
my heart is aching for my flurry and for your max right now.

i hope they are playing in doggie heaven together.