Chessmont, I'm so sorry about your doggie. I would be doing the same thing you are doing. I could not give up without at least giving the chemo a try. You just need to have faith and know that you are giving your dog as much life as possible, and that you will know when treatment or chemo is no longer the best option for him. It is such a very delicate balance - but you know him better than anyone, so in a lot of ways this is the right time to let your heart be your guide.