While the parent certainly didn't approach it in a polite way; they have a point in terms of the last comment at least.

A quick search online associates PCOS with increased risk of type 2 diabetes, high cholesterol and blood pressure, stroke, infertility, fatty liver disease amongst other things. Hardly seems like something a doctor would assure someone was of no consequence to their overall health.

So while saying 'you should work harder' isn't nice; the post shouldn't be disregarded.