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Why is my puppy not acting like himself, not eating, and mellow?

Updated On September 23rd, 2025

Pet's info: Dog | Bichon Frise | Male | unneutered | 7 months old | 15 lbs

Just wondering why my puppy started to not act like himself. This morning he was fine but later this afternoon he would not eat and even ignore his treats. He is also super mellow which is unusual..

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1 Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on January 26th, 2018

Thanks for visiting Petco Pet Education Center, formerly Petcoach. Cute puppy. There can be many reasons why your puppy Max is more mellow and refusing his food this afternoon, as these are not very specific symptoms for one thing or another. However, I would first suspect that he may just be getting odler and doesn't have as many calorie requirements as he did when he was younger. Between the ages of 6-8 months most puppies go from 3 times a day meals to twice a day meals and decrease their food amount by about 1/4-1/3rd. However, if Max develops other symptoms such as vomiting, diarrhea, refusing to eat for more than 12 hrs, has labored breathing or pale gums, then those are concerning symptoms of illness and he should be seen by your vet right away for testing to determine the underlying cause. Puppies are suscpetible to getting illnesses such as parvovirus (if not fully vaccinated), bacterial infections, underlying congential heart problems or intestinal parasites. However, Max likely is just fine or has a mild stomach upset or is just going through the normal processes for a growing puppy. I hope everything works out well for your pet Max here moving forward. Best wishes and take care.

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