"Many patients with CFS mention that they were under considerable stress at the time that they fell ill. But so are people who have heart attacks. The presence of stress leading up to a heart attack does not result in heart attacks bring classified as mental illnesses."
I think most people will know someone close-ish to them who has suffered a heart attack, and am moved to ask one simple question: how many of those people would be happy if after a stress-induced heart attack, their loved one were offered ONLY psychiatric treatment?
How happy would you be?