Before someone questions me, this is a phenomenon that has been documented. https://www.sydney.edu.au/news-opinion/news/2022/05/24/during-general-anaesthesia-1-in-10-people-may-be-conscious-follo.html
https://www.bbc.com/future/article/20190313-what-happens-when-anaesthesia-fails
Forgive me if this is the wrong place to post; c/mutualaid feels like it would draw attention away from people with more urgent issues, and c/mentalhealth is very inactive and rarely anyone ever sees it.
This is a different philosophical question but I think it does matter, even if you had no memory of it. I wouldn’t want to die a painful death even if I obviously wouldn’t have any memory of dying, because the experience of pain is bad. OP is justified in being concerned about a potentially bad experience even if OP wouldn’t remember it regardless.