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Why is my cat sick, lethargic, not eating after rabies vaccine?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Male | neutered | 10 lbs

Mau Mau has had a minor nosebleed and eye discharge, is incredibly lethargic, and has only eaten part of a small can of Fancy Feast in the past two days. He drinks a lot, but belches and heaves when he does. He's an FIV + kitty who recently got a 3 yr rabies vaccine this past Thursday.

1 Answer

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on March 5th, 2018

I would take Mau Mau to he vet asap as it sounds like he is very poorly. He could have a nasty infection going on or could be feeling lousy from the vaccine. He may need supportive care until he feels well enough to eat again.

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