That’s a bit harsh. While I agree that adrenal fatigue and other catch-all diagnoses used by “alternative medicine” aren’t based in science I do think we need to have an open mind and consider the possibility that people are dealing with an actual medical issue that we simply haven’t isolated/identified yet.
To casually dismiss a person’s symptoms as all in their head is just as dangerous as trying to treat their symptoms with alt-med hocus pocus.