Last Wednesday we took our Cavalier King Charles Spaniel to be neutered. Everything went as planned. That night he was in more pain than what other dogs I've had was. He cried on and off all night. From then he has steadily gotten worse. Then Tues he stopped eating and crying out if you touched him anywhere. Wed was worse, he didn't want to walk at all and still not eating. I took him to the vet who said everything was fine, she thought he had ulcers and gave him meds for that. Thurs he still isn;t walking at all, and now it's been 48 hours since he has used the restroom. She doesn't want me to bring him back in till Mon, but I'm scared he isn't gonna make it till then. He was just fine before the surgery, I think it has something to do with that. I also forgot to state that he also had diarrhea those days before he stopped using it all together. I'm so worried about him and aggrevated with my vet, please help.