IFF - I am so sorry for your loss. Levi was a very lucky dog to have you and your family and you were lucky to have him. Times like these are very hard as our pets are a big part of our family....but treasure the good times you guys had. Levi is okay now, not in pain. In fact, he's having fun at the Rainbow Bridge.
http://www.petloss.com/poems/maingrp/rainbowb.htm