Ask HN: Medical symptom checker website – with ML?

I have found a thread about medical AI/ML on HackerNews and someone posted a link to a medical symptom site which looked quite professional (similar to symcat) with very functional design and there was incredibly many options to enter (even lab test result eg. low iron in serum etc.) I visited this site on my tablet and left it open in a tab - unfortunately my device had been stolen and sync was off. This was between Jan-Jun this year. I have tried google-fu and hackernews search to no avail. Can someone help?