my stud dog started out with bladder stones. A week after surgery to get the stones out that were in his dick his bladder closed up. after another sx to open his bladder the vet wanted to put him down. i wouldnt let him. now my stud has started showing the same signs that his bladder is closed again. what would you do. pay another vet are go ahead and let yyour 7 year old stud rip