Dog owners normally misinterpretated this kind of behavior as a kind of attention seeking behaviour but the fact is most of the changes in dog´s behavior relate to health problems. Common ones like fatigue, recession of memory, uncontrolled urination and disorientation are in fact signs of aging which reflected problems of internal system. Learn more about these signs of aging (Create a link to “Sign of Aging”) and take appropriate measure on it. Always consult your vet if you have any queries.