My earliest memory was a falling down and hurting myself when I was about 3 years old. I don't remember anything before that or much after it either

It's not that I actually remember things from when I was very young but that the stories of the 'terror' twins do seem like what the two of us got up to. We were incubator babies so the initial bond with mom never really happened. Looking at pictures is fun and there is actual 8mm film taken by my aunt of us and then later when our younger sister came along.
I really enjoy livescience.

I remember screaming for more fresh green peas when I first tried them in a highchair, under 8 months as we moved about 2 months later.
I remember and accurately described my shoes as I took my first steps unaided.
I have had recurring dreams of being in a "big wet sack" and being squeezed hard, in waves.
I remember my father molesting me and my mother catching him (he always did it while she was breastfeeding my brother, 16 months younger than I), and the screaming "How could you?!" that went on Forever and never being comforted, and crying "i'm sorry mommy" over & over while the screaming went on, and no longer being loved by my mother after that....they had 2 more kids afterwards, total of 4.

Interesting. I know a study was done once with very young children, and some of them apparently did have memories of being born and being in the womb. Consistent with this study, we just lose these memories as we get older. I have memories of being 3 or younger, apparently a lot of people don't remember much of their childhood at all.

I don't remember being an adult.