Pre - I remember things not as a coherent narrative. It's all sort of there, I just can't put it all together at once - my mind shies away from it. Ergo, cannot tell anyone the "whole story."

I would also rather someone understand the feelings and emotions I have (because I sure don't) than understand in the sense of having the knowledge of what exactly happened when. The first seems more valuable - more accepting, like you didn't have to "prove" them into understanding. But that is probably just me.