Oh I TOTALLY understand. My Samson has 3 surgeries and I was a wreck each time. He had orthopedic surgery for a broken leg at 6 months, neutured at 1.5 years old and had to have surgery to remove a toy he swallowed at 4 years old. No it's not fun and yes it's totally normal to be worried sick but as long as you find yourself a good vet, experienced with bullys everything will be just fine. Still very sorry to hear though, poor Walter!