The Institute of Medicine is reviewing how chronic fatigue syndrome is diagnosed and whether that label puts too much emphasis on fatigue over other significant symptoms. Daniel Horowitz for NPR hide caption itoggle caption Daniel Horowitz for NPR Shots - Health News Does Chronic Fatigue Syndrome Need A New Name? January 30, 2014 The Institute of Medicine is reviewing how chronic fatigue syndrome is diagnosed. But some patients and doctors say the one of the biggest problems is the name itself. The hallmark symptom is not fatigue, they say, but a physical and mental crash after even mild exercise.