Why did my five year old shihtzu die .
Rossi was five years old ,and was taken to out of hours vet after arching his back and letting out a howl .they said he had bladder stones and one was stuck in his uretha after doing his bloods which were all normal ,they then operated and said all was fine he came home 3 days later .he had been home about four hours when he had a seizure ,we took him back to the vets were he had sevral more seizures they gave him mannitol ,but said he was very flat then they said he might have a blood clot on his brain ? A day later they said he had stopped breathing ,can someone explain what happened I'm devastated.