It is also very problematic in then seeking treatment: The conviction that you have X mental illness will influence how you report symptoms and color your exper

It is also very problematic in then seeking treatment: The conviction that you have X mental illness will influence how you report symptoms and color your experiences to fit that narrative. Incorrect diagnosis is already a problem in mental health-- attempts at self diagnosis typically only compound the problem. It's one of those areas where you really want patients to go and report unbiased experiences (in so far as that is possible even without preconceived self diagnosis)