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My cat threw up after food change and is now quiet. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Longhair | Male | neutered

We have a five-year-old domestic ginger long hair recently he hasn't seen himself it started when we first switched his food because the store didn't have the usual kind in stock we bought him the same brand but after 3 days he's threw up 5 times in one day and ever since even after going back to his original food he hasn't seemed like himself he doesn't meow as much as he usually does and he lays in a spot all day which is weird for him and it almost sounded like he had a sore throat

2 Answers

Most Helpful Answer

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Answered By Jeffrey Milner

Veterinarian

Published on August 20th, 2017

While it can not be determined for sure, it would definitely seem that the food resulted in either an upset stomach, an allergic reaction, or a mixture of the two. The vomiting could have certainly irritated the lining of the throat and resulted in the some pain / discomfort. Another consequence of vomiting however that is far more serious is if an of the vomit was inhaled accidentally into the lungs. This can result in pneumonia and the various consequences of such a condition. Since his condition has persisted for a number of days now even after switching back to the old food, I would say that it is time to have him examined by a veterinarian to make sure there is nothing else going on that's requires addressing. They may want to obtain some blood work or imaging to ensure you that there are no serious problems. Hope this helps.

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    Answered By Daniel Fonza, DVM

    Veterinarian

    Published on

    Hello there and thank you for your post! I am sorry to hear Douglas is not feeling well. Douglas may be exhibiting these symptoms due to dehydration from the vomiting or a systemic illness / infection. It would be best if you take Douglas to his veterinarian to have a blood panel checked. If he is dehydrated, he may need fluids injected under his skin to help hydrate him. If it is severe dehydration, then IV fluids would be more effective for hydration and this would require a hospital stay somewhere that is 24 hours. I hope this helps guide you in the right direction. Please let me know if you have any further questions or concerns. I am also available via phone or text consultation.

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