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My dog is suddenly lethargic, not eating or playing. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 1 year and 7 months old

My dog is unusually calm even when I returned home after being out for a few hours. He doesn't want to play with his toys. He also doesn't want any treats. He is currently sleeping under my bed. Why is he acting so strangely?

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2 Answers

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 1st, 2017

It could be that Mickey is feeling unwell, and that's leading him to be a little more lethargic than normal. I would keep an eye on him for now, and if this lethargy continues over the next 24-48 hours, I would have him seen by a vet for a health check. If he develops other signs such as anorexia, vomiting, and/or diarrhea, I would take Mickey into a vet sooner.

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    Answered By Sara Farmer, DVM

    Veterinarian

    Published on November 26th, 2019

    It’s difficult to say why Mickey might be sleeping more than usual. He could still have stomach upset or even a blockage from eating the sanitary napkin. If he seems very weak or lethargic you should have him examined by your vet. If he is normal when he’s not sleeping you could probably monitor him for a few days but if he vomits again, if his appetite is decreased or if he develops diarrhea you should see a vet.

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