What is the earliest thing you can remember, and how old were you when it happened?

My earliest memory I think was when I was maybe a year old, and I had to have surgery for a blocked tear duct. I remember lying on my back and screaming and crying on the table or whatever as a doctor stood over me in front of a bright light and then everything went dark. Pretty sure they only reason I can still remember it is because of how traumatizing it was at the time.