"Is It Anxiety or Orthostatic Intolerance?" (2011) - on how anxiety questions can be problematic

[Dolphin]

"Is It Anxiety or Orthostatic Intolerance?"
http://solvecfs.org/is-it-anxiety-or-oi/

I have occasionally read pieces highlighting how some questions on depression questionnaires can have problems in ME/CFS as they ask about symptoms of ME/CFS e.g. fatigue, sleep problems, etc.

This article is on how questionnaires for anxiety, which I have read less about.

It focuses on orthostatic intolerance more than ME/CFS, but many people have both anyway.

It's partly based on:

Raj V, Haman KL, Raj SR, Byrne D, Blakely RD, Biaggioni I, Robertson D, Shelton RC. “Psychiatric profile and attention deficits in postural tachycardia syndrome.” Journal of Neurology, Neurosurgery and Psychiatry.2009;80;339-344.