This is the same as Googling your symptoms, but on a more broad scale. I think the issue here is how many people are going to give themself self-induced health anxiety because of this result.

There is no deny on positive case of people actually being helped by ChatGPT. It's well known that Doctors can often dismiss symptoms of rare conditions, and those people specifically find way more success on the internet because the people with similar conditions tends to gather here. This effect will repeat with ChatGPT.