Ratanplane. I cannot draw any lines in the spectrum of mental illness as I am not qualified to do so BUT I have tried to draw a distinct line between normal life stressors, that we will all face, especially death of a parent, from the cases of mental illness. Ihave no answers but Irather suspect there are none other than remove clinically diagnosed mental illness from the cockpit and cabin.
The Aviation Medical community need to consider a better system of identifying such cases. In the UK a remarkably simple start would be to automatically grant AME access to pilots GP medical records!