Said It Here

Cat hiding and acting weird after vaccine

Vaccines can temporarily knock cats out and make them feel poorly, leading them to hide for hours or struggle to get comfortable. This behavior causes owners to panic and worry whether they should check on or disturb their pet's hiding spot.

Overview
People affected4 accounts across 1 forum
Workarounds found9 items attempted
Community agreement23 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Checking in on the cat via camera
    Did this help you?
  2. 2
    Setting up additional cameras with motion alerts
    Did this help you?
  3. 3
    Waiting for the 24-hour mark before contacting the vet again or taking apart the hiding spot
    Did this help you?
  4. 4
    giving Churu treats
    Did this help you?
  5. 5
    applying snuggles liberally
    Did this help you?
  6. 6
    Giving them a few days of space
    Did this help you?
  7. 7
    Offering treats like Churus to help them readjust
    Did this help you?
  8. 8
    Offering treats
    Did this help you?
  9. 9
    Calling the cat out
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/cats4 people · September 2026

“She got her first dose of FVRCP today and she’s just poorly. She keeps whining at us and can’t seem to get quite comfortable.”source ↗

anotherlesbianonline · r/cats · 12 upvotes

“My cat got spooked since yesterday morning and he is not coming out and acting really strange.”source ↗

“I saw her yesterday coming to my room quite frightened and hiding under pillow and since then he just been hiding.”source ↗

“I tried offering treats and calling him out but not responding.”source ↗

Basic-Reindeer6733 · r/cats · 7 upvotes

“It is now 7:07pm and she has not emerged from the fort.”source ↗

“Now, this morning I panicked a bit, but then I started reading about how rabies shots can really knock them out.”source ↗

“Has anyone else had a similar experience?”source ↗

seanpaune · r/cats · 4 upvotes

“Our two kittens have suddenly become much less affectionate with us after their vet visit and third vaccination.”source ↗

“They’re much less warm and affectionate, they don’t really come to cuddle us anymore, and they seem more distant overall. We’ve also noticed more aggressive behaviour than before.”source ↗

TheRealFilmGeek · r/cats

Where this came up

People with this problem also raised