Ask HN: Self-assessment health app shared here on HN?

Someone shared a beautiful self-service daily health diagnostics a few(?) months(?) ago here on HN.

It successfully helps people who struggling with identifying why they feel poorly with reflective questions (Have you had water? Have you eaten in the last 24 hours? etc but better).

Hoping someone has it bookmarked! — been digging for weeks.

Thanks for reading.