The hard part of being a doctor is the differential diagnosis. The big problem that I see with self diagnosis is that people don't construct differentials. And depending on what pops up on your Google search, you'll diagnose yourself with MDD or hypothyroidism. So this is why we do diagnostic interviews and diagnostic tests and diagnostic exams and physical exams. Because we'll ask a thousand questions that the person themselves won't ask themselves because they don't know to ask him.