Sadly enough it may be the doctor's fault that his patient is deemed a "hypochondriac": He has heard what she has told him about her symptoms, maybe even for years, but he never listened and took her words in as the information they are. Why is that? Well, I would say that it's my impression that the communication is difficult right from the beginning, yes, even impaired by one fact: The patient uses words that are not part of the medical lingo. To talk of a symptom as "pointed and bluish" makes sense to her, but not to him. And what about something like e.g. "a pulsating as well as heavy feeling in the muscles"? To her that is a very precise description, but to him it's nonsense which makes it "impossible" (?????) for him to translate it into his vocabulary.
All kinds of language are interesting both as phenomenon and possibilities because that's all we have when it comes to communication. To tell someone something by using words or signs, colors or music, etc., etc. is only possible if they have some common frame of reference. That often is a choice: One allows oneself to be told something or one discharges the information that is offered, e.g. by a patient. Sadly enough doctors and patients often talk past each other. Also doctors often don't see eye to eye on medical problems ....