Updated On September 23rd, 2025
Pet's info: Dog | Boston Terrier | Male | neutered | 2 months and 10 days old | 6.4 lbs
I've heard of puppies being lethargic after vaccinations, but Oliver seems to have more energy than before. He had lots of energy prior to the vaccination, and now he seems to have even more. Also, he seems more skittish; noises that he was used to before, startle him now. Is this behavior change a coincidence?
1 Answer
Published on August 2nd, 2017
I'll bet Oliver is a cutie!! If he just had the vaccinations in the last few days, I think you right to watch him for reactions. If his energy seems increased, that is a good sign that he is not having a negative reaction! His sensitivity to noise is likely a coincidence, however I have had puppies that are a tiny bit sore after vaccinations and therefore a little more 'on guard' for a few days. If all else is normal, I would just monitor him at this time! I hope this helps!
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