Sure. Went like this (I have seen so many doctors that I already wrote down my complete history in french to save time at new visits. Didn't bother translating the history, didn't seem to phase ChatGPT):

""" Here is the patient history (in french):

    • 2000-2010: 
        ◦ ...

    • 2013: ...
      ...
      

Additional Notes:

- <Some additional observations and comments - patterns I noticed, family history, etc.>

Patient is particularly worried about xxx and yyy. What are some possible causes explaining these symptoms and the overall history? Give detailed reasoning to support your hypotheses, include differential diagnosis, think about rare diseases (common causes have already been considered), consider possible combinations of diseases, and don't hesitate to ask follow-up questions to improve diagnosis. Please answer in English.

Additional test results that are outside of normal ranges:

- <list of abnormal results>

Try to consider and explain as many of the blood tests in your work up, and ask for any missing information if necessary. """

The key was to address it as if I was a doctor asking for an opinion. If I asked it "as a patient", I got much lower quality and dumbed down answers.