Fatigue is a symptom, rather than a sign. A symptom is something the patient feels and describes, such as a headache or dizziness, while a sign is something the doctor can detect without talking to the patient, such as a rash. Fatigue is a non-specific symptom, i.e. it may have several possible causes.
Indoor Cats. Indoor cats can live a long life, provided they're well taken care of and they're in good health. On average, indoor cats live 12 to 15 years. A cat may reach the age of 21, if he doesnât have any medical conditions and has a proper diet.
Best Answer: The official average lifespan of a cat in the US is 13-14 years old at this time. However, that includes cats who go outdoors, as well as those who live completely indoors. There are no official statistics on cats who live completely indoors (i.e., a house cat) that I am aware of.