As well, my husband is getting irritated with the continued vet visits and although he loves Tiger, he thinks this is all too much. Most people that we know (friends, family) think that as well. I don't know why I'm trying so hard to save him at all costs.
Although I sort of understand their sentiments, I don't agree with them at all. The reason you are trying so hard to save him is because you know it is the right thing to do. If Tiger was suffering and wanted it all to be over he would let you know and you would know it in your heart.

Good luck little Tiger