A friend of mine said she had to put her cat down since it constantly vomited. 15 years old. It was very thin. Supposedly the doctor couldn't find anything wrong re thyroid etc. He suggested bringing her to a specialist? she didn't want to put her through tons of tests. Question is has anyone out there had the same problem. any idea on what it could have been that caused this. Could it have been pancreitis? Surprised Doctor could not put his finger on it.