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.
Veterinary medicine has made some great advances in recent years, and this is one of the reasons the average age of domestic cats is increasing. A well cared for cat that is kept indoors and is fed a good nutritional diet, would be expected to live for about 15 years. Some cats do live to 20 plus years and there are records of a few cats reaching over 30 years. These sort of ages for a cat are very much the exception however. The genetic make up of a cat can be a factor in determining its life span, some breeds of cat appear to be more resilient than others.