Is a geriatrician (doctor specializing in care of the elderly) a good idea for a parent who is tired all the time and doesn't always eat enough? I'm not sure if my mom is physically ill or just depressed. She was just checked out by her cardiologist and he said she was fine. I don't want my mom to have to go thru a lot of fruitless tests, but I would like her to have a better quality of life. Does anyone have any experience with a geriatrician?