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Why is my new kitten sleeping a lot and inactive after vaccinations?

Updated On September 23rd, 2025

I got 2 kittens Today of line And the Lady said she gave them there First Set of shots herself See bought the Stuff at tractor Supply store but Now the One kitten Sleeps ALOT!! Not Active at all. I just got them Today so i Hope it will Work itself out the One is doing Great But the other im a little worried.

1 Answer

Most Helpful Answer

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Answered By Stephanie Echols, DVM

Veterinarian

Published on August 27th, 2017

Thanks for using Petco Pet Education Center, formerly Petcoach! If they lady that gave the vaccines gave them within the last 24 hours, that can definitely cause a kitten to be more tired or sore than usual. Also, coming into a new home/environment is also stressful and causes some new pets to sleep more. If the kitten isn't more active by morning, or isn't eating or drinking or having vomiting or diarrhea, I would take her to see a vet. I would also recommend updating their vaccine in about 1 week- Tractor supply vaccines are not guaranteed and your kittens may not be protected. Good luck and congrats on the new babies!

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