My concern is that for every person with a rare disease causing vague symptoms, there are more people with similar vague symptoms that don't have an underlying

My concern is that for every person with a rare disease causing vague symptoms, there are more people with similar vague symptoms that don't have an underlying rare disease. This is a problem, for sure, and additionally the people with vague (perhaps even imagined) symptoms probably vastly outnumber the ones with legit but weird conditions. But for the people with those conditions who can't find a doctor who will take them seriously, what are they supposed to do? I know a few of them, and I'm unwilling to basically throw them under the bus for the greater good. IMO (going back to OP), if LLMs give them a few options that they can go back to a doctor and ask "Could it be this? How can we rule that out?" could be really life-changing.