The cat sticking out its tongue and panting as if it is dying may be caused by heat stroke, stress reaction, respiratory disease, or heart disease. If it is heat stroke or stress reaction, it is best to take the cat to a cool and ventilated place, and then give it a Provide the cat with enough water to allow the cat to relieve itself. If the cat frequently suffers from this condition, it may be caused by respiratory disease or heart disease, and the cat needs to be taken to the pet hospital for examination and treatment.