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My puppy is lethargic, not eating, but isn't vomiting. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Havanese | Male | unneutered | 6 months and 7 days old | 3 lbs

My puppy is acting strange. Usually he’s hyper today he is just lying around. No diarrhea and no vomiting. He is drinking a little water but not eating

1 Answer

Most Helpful Answer

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Answered By Joy Fuhrman, DVM, MBA, CPA

Veterinarian

Published on May 8th, 2018

Lethargy and inappetence are very concerning signs especially in a young puppy as they can lead to dehydration very quickly. I recommend you have Max examined by your veterinarian right away. These are very general and non-specific signs so it is difficult to make any suggestions as to what might be going on.

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