Meet Daniel Age: 2 years old Breed: Domestic Shorthair Diagnosis: Effusive (wet) form In March 2021, my cat suddenly became lethargic, lost weight, and showed difficulty walking. Initially, I suspected it was a minor infection, but the vet, after conducting rapid tests, presented three potential diagnoses: a blockage due to ingestion, cancer, or Feline Infectious Peritonitis (FIP). The tests suggested…