Modern medicine has a habit of attributing unknown physical ailments to a sketchy diagnosis of mental illness. The thinking goes "well we don't know what's wrong with you, so it's probably anxiety or depression". The symptoms he states could be allergies, Lyme Disease, a brain tumor for all we know, or something else. The quickness with which some doctors rush to a diagnosis of anxiety or depression is scary, sometimes doing so before running any tests.

Your post kind of comes off as blaming the patient. This is the quickest way to get people to avoid seeking help, because they will be told they are at fault for all their symptoms, which makes them want to seek treatment even less.