My 5 year-old Shih Tzu, was diagnosed with portosytemic liver shunt and also heart murmur (its was between 3-4),a month ago, and was taking antibiotics, lasix, and lactulose. One day he was doing ok.. the other, he was disoriented, unbalanced, and confused. We noticed that friday night he had the same symptoms but he was also drooling a lot. Sunday we went to bed and i saw him walking in circles, going to various places with his head down, drooling a lot, really in bed shape. I woke up 2:00 am Monday morning and found him crashed on the floor of my bathroom. Monday afternoon, we took him back to the vet and he said that his heart murmur is between 4-5. He said that there is not much we can do about it. My husband is not willing to pay for him to have an specialist to take a look at my puppy. The vet said that the operation could fix his problem with his liver, but that his heart isnt good and there is maybe nothing that we can do because the 2 major organs of his body is shutting down.. I don't know what to do. I hate to see him not able to function right, not able to walk normal ( he has no balance and strength in his legs). I'm lost! I've been crying for 24 hours already. My husband and also the vet said that is maybe time to let him go. But Lucky (that's his name), responds when i call him. Even sick the way he is, he gets up and go to where he is supposed to make pee and # 2. I can't think about letting Lucky go now.. Lucky is my baby. I love him too much. My kids do also. Lucky makes me happy; makes me company when no ones is home; sleeps in our bed; he protects me. Please, let me know what do you think. Is it time to let him go? I need someone to help me!! Thank you.