But there are things I don't remember, too. There is enough continuous memory adjacent to such gaps that to infer what must lie within them is trivial, but it has to be inferred, because the memories themselves are either not present or not accessible.
There's nothing in those gaps to which I want or need access, so it doesn't concern me especially that I don't have it. But it does leave me able to attest that both responses not only exist, but can co-exist in the same person.
As I said, though, I really don't know what makes the difference in how memory and trauma interact, why it varies within and between people - certainly there are many who've had experiences like the ones I don't remember, only they do remember, and I wouldn't hazard a guess as to the why of either.
My SO and my mom always seems surprised that I'm able to recall various events from my childhood, but to me it doesn't feel very special.