Sorry, I don’t understand your point. Mine was simply that a belief in toxic air could not have caused the symptoms to appear since she didn’t have that belief yet.
Chances are that the other, core (unconscious) belief caused the symptoms, and then her consciousness made up the toxic air theory to fit everything together, because some VOC counter had some digits on it and there was a burial of unknown waste down the road and something smells at 3 am. E.g. when moved in, she have seen a clock in the hall or a doorbell that subtly reminded her about some event in the past when her self-esteem was hit hard and she felt worthless. Now every time she walks in, it kicks in and causes a set of psychosomatic symptoms. That’s how it works, if this is the case, and that is what I referred to as “so common”. People often talk about “bad” places, bad energy, more psychotic ones may think that it’s their neighbors irradiating them. White coat syndrome is very “popular” as well, because doctors may get associated with harm and pain deep inside. We are constantly attacked by these associations that make us do [strange] choices or have preferences (pen color, perfume smell, facial features, etc), but only hard ones cause sickness, because they make our unconsciousness burn.
It’s very hard to realize that an issue may be completely inside your very smart and logical mind. It must be something in the air, or germs/viruses, or vibrations. I bet that at least one of the doctors suggested her to check her mental health, but we always dismiss that, because we are fine, alright. We are not the type of person who could need that, gosh, that’s laughable. Only idiots and schizophrenics may have mental health issues, not us. Of course this little nuance couldn’t make it into the article.
E.g. in my case it took nine months of occasionally “dying”, a bunch of pricey and unpleasant procedures, then two more weeks of the chronic state and three doctors suggesting it, before I decided to go check my mind. Symptoms rate dropped 50% after the first appointment and 45% more after I completed my first “homework”.