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Signs Your Cat Is Sick: Health Changes Cat Owners Should Track

Learn common cat illness signs, what details to record, and how a cat health record app can help you prepare for veterinary care.

June 3, 2026 · 2 min read

Cats often hide discomfort, so small changes can matter. Watch for shifts in appetite, water intake, litter box habits, grooming, breathing, energy, hiding, vocalization, vomiting, coughing, limping, or weight.

Changes worth tracking

Record when a change started, how often it happens, what your cat ate, medication changes, and any visible signs. A cat health record app helps you keep these details in one timeline instead of trying to remember them at the clinic.

Useful notes include:

  • Appetite and water changes
  • Litter box frequency or straining
  • Vomiting, coughing, sneezing, or breathing changes
  • Hiding, low energy, or unusual vocalization
  • Grooming changes or matted fur
  • Limping, pain, or trouble jumping
  • Weight changes
  • Medication timing

When to call a vet

Contact a veterinarian promptly if your cat stops eating, struggles to breathe, cannot urinate, collapses, has repeated vomiting, seems severely painful, or has a sudden major behavior change. Pavlov's AI pet assistant can help you organize observations, but it is not a diagnosis.

Build a clear health history

A simple log can help your vet spot patterns. Track food, water, litter box changes, medication timing, behavior notes, weight, and visit history in a pet health tracker.

FAQ

Is hiding always a sign my cat is sick?

Not always, but new or unusual hiding can be important, especially when it happens with appetite, litter, breathing, or energy changes.

What should I write before calling the vet?

Write when the issue started, what changed, how often it happened, whether your cat is eating and drinking, and any medication or toxin exposure concerns.

Can Pavlov diagnose my cat?

No. Pavlov helps organize care notes and general questions. A licensed veterinarian should diagnose and treat medical issues.

For easier cat health tracking, download Pavlov.