In one case it was a urinary flow test (uroflowmetry). The results go to a lab and then the doctor gets the summary. Was able to diagnose the issue, prevalence, etc. and educate myself about treatment and risks before seeing a doctor. Papers gave me distributions of flow by age, sex, etc. so I knew it was out of range.
In another case I uploaded a CSV of CGM data, analyzed it and identified trends (e.g. Saturday morning blood sugar spikes). All in five minutes on my phone.
If you don't mind sharing, what kind of useful information is ChatGPT giving you based off of a photo that your doctor didn't give you? Could you have asked the doctor about the data on the instrument and gotten the same info?
I'm mildly interested in this kind of thing, but I have a severe health anxiety and do not need a walking hypochondria-sycophant in my pocket. My system prompts tell the LLMs not to give me medical advice or indulge in diagnosis roulette.