Cat tired after vet shots? What vaccine side effects are normal?

Hi. Poor Sunny. I know it may seem abnormal, but it is common and normal to have a patient be quiet, lethargic, hide, skip a meal, and ecen be sore and whiny after a vaccine. Some vaccines affect patients more then others. I would not worry unless Sunny starts vlmiting, having excessive lethargy, hives, swelling, or trouble breathing. I would monitor and call your veterinarian if any further signs occur.

It can be normal for kittens to be somewhat tired and sore after vaccination, just like human children. Some may run a low-grade fever and not eat well for the first day or so after their shots. What is NOT normal would be any of the following symptoms: repeated vomiting, pale gums, difficulty breathing, or collapse/extreme weakness - these are signs of a serious allergic reaction. This is very rare following vaccination, but if it occurs it can be life-threatening - so if you observe any of these signs, make sure to get your kitten to the vet right away. If she is just tired and sore, it should be fine to monitor her at home - she should be feeling better within the next 24-48 hours.

I'm so sorry that Noushmc isn't feeling well. Pain at the injection site and mild lethargy are very common with vaccinations and considered normal since the vaccination is stimulating the immune system. It usually lasts 1-2 days and will resolve on its own. If Nouschmc is not eating, is vomiting or it lasts more than 2 days, I would contact your veterinarian. Good luck! I hope she feels better soon and that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

This sounds like a side effect of the vaccine, it's not super common but i'v seen a few cases already and this usually resolves within 48-72 hours. your vet could give her pain killers for a couple days if her condition seems to be really bad.

Hello and thank you for your question. I hate to hear that Covid-Max (love that name!) is not feeling well. It's possible that Max is having a vaccine reaction. These generally occur within 24 hours and can range from severe lethargy, fever, swelling of the face to collapse. He may have a fever today which is not uncommon with a vaccine reaction (though not always present). I recommend to call your veterinarian right. They may want to exam Max again to check for signs of a reaction and to treat him. Additionally, if this is a vaccine reaction, they will take precautions in the future to decrease the potential for another reaction. This may include giving him an anti-histamine before his vaccines, spreading out his vaccines or giving him a steroid. I hope this helps and that Max starts feeling better quickly! Please feel free to post any additional questions.

Thank you for submitting your question regarding Lily. Vaccines can result in lethargy. I would discuss this with her veterinarian at her next appointment. She may benefit from some pain medication in case she is uncomfortable after her shots. If she experiences vomiting after her vaccines, this is a sign of a reaction. Her veterinarian will need to know this information as well. Even if she is indoor only, vaccinations are necessary for her. I hope this information helps!

It is possible that Smokey is experiencing a vaccine reaction they can have a fever and be lethargic for 24 hours after the injections. If it persist longer than that I would return to the vet for medication. Be sure to notify your vet of this reaction so they can premed or split up the injections in the future