A cat with a dry nose and lack of energy and appetite may be caused by illness, such as colds, fever, feline distemper, pyometra, etc., which will cause cats to have such symptoms and need to go to the hospital for examination. It is normal for a cat to have a dry nose just after waking up, but if it has fever, vomiting, diarrhea and other other symptoms, it means it is sick and needs timely treatment, otherwise it will easily aggravate the condition.