About 2 weeks ago we took my 11year old fur baby (cat) to the vet cause she'd been vomiting all night. The vet gave her a shot of Cerenia and sent us home with the tablet form of that for her upset stomach. He also gave liquid Metronidazole. Within a few days she was back to normal. The vet said to stop the antibiotic after she'd been on it a week because giving it to her became a major fight. She's been acting like she feels great the past week even playing like a kitten. She talked my husband into giving her a couple bites of cheese then not after she started vomiting worse than 2 weeks ago. Since it's in the middle of the night I gave her a dose of Cerenia. She hasn't thrown up since I gave her that. The vet told us the gastritis could come back and I'm wondering if the cheese is what caused it to flare up or was it something else? Has anyone had anything like this happen and what do you suggest? I still have the antibiotic, should I give her more of that?