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Why is my puppy so tired after bath, treat, and first shots?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 2 months and 7 days old | 3 lbs

I bathed my two month old puppy today and gave him a treat after as a reward. Then he suddenly became very like tired and lazy. Hes just sleeping and normally even if hes tired we can run around and throw toys around and he will start to get excited. I just wanted to ask if its normal due to getting bathed and eating a treat or maybe if he didnt react well to the treat or something. Also, he got his first round of shots yesterday so maybe that has something to do with it?

1 Answer

Most Helpful Answer

Ricardo Fernandez, DVM

Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on April 14th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! Possible side effects after vaccines include pain at the injection site, lethargy, inappetence and general discomfort. This should subside within 1-2 days. If it does not improve or it worsens, have Willy evaluated by a veterinarian for further assessment and treatment. Otherwise, Willy will likely start feeling better shortly. Good luck and best wishes!
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