Do you ever have the fear that if something happens to you nobody would know

I’m pretty young and healthy but the other day I had a scary health event. Now I have this fear that if something actually does happen to me.. nobody would find me for at least a few days. Is there any precautions I should take to ensure i’m found earlier? I know this is super grim and maybe even irrational but I’ve only been living alone for a few months and never thought about this before a few days ago.