I have a 16 yr old yorkie who is blind and partially deaf but he copes with that extremely well. For a while now he has had a lump on the side of his face which the vet said they couldnt operate on because of his age, but that because of him still eating fine, leave it. Now it has got bigger and is bleeding regularly. The vet says there is nothing they can do for him. He also has the area around his lips has really swollen up by about 1/2 of an inch and he can't contain his saliva much. Is it time to let him go?