I'm just speaking of my experience, especially for scenario 2 as a patient.

In 2020-21, after experiencing numerous amounts of negative tests (even with symtoms) - I came to the conclusion that my symtoms were psychosomatic because no tests show it right? I saw all these people on IG getting all these diagnosises and stuff. After a buttload of trauma as a child, medical milingering by parents ect - I admitted myself to a institution to get help. Whilst I was there junior doctors were on rotation, and they came to the conclusion that I was suffering with MC/SSD/psychosomatic illness (I even have posted here in the past asking about MC - now deleted). I did therapy for it (I was admitted for months) but the symtoms persisted. Now we know it wasn't that at all but, this does all come into a good place. (I still do therapy).

Fast forward to last year, I show up to a sector of a Geneticist. Familiar face there, one of the junior doctors from the psychiatric institute. He recognises me straight away. Explains his concerns to the geneticist. The geneticist absolutely grills me, basically trys to throw my care all up under the bus. (please don't get me wrong I do understand why he did this).

It took months but he did agree to run the tests, and it showed I had Mitochondrial Disease. None of my symtoms were psychosomatic. It was definitely 'traumatic' for someone to do that to me and be threatened to be admitted again when I had been cleared of having these illnesses for the most part. (I still suffer with SSD) but I do definitely understand as a health professional where people need to do these things and in the long run, by him caring enough to make sure these things were actually happening and not something my brain had thought was real. To make sure that his care wasn't going to be used milingerently, it did really help me.

It could really help someone. But please don't do this unless you're a medical professional that works with that specific doctor.