> If the symptoms are due, even partially, to a psychiatric condition such as PTSD, treatment will help manage those symptoms, and provide a clearer view of any underlying brain issues.

Ah, I see the merry-go-round of "no, some other specialist needs to see you first" is alive and well.

Is there any compelling evidence that psychiatric conditions causing "brain fog" actually represent a distinct underlying pathology from TBI or post-viral fatigue, or is it just assumed that they must be different because they're given different labels and handled by different medical specialties?