No, this is not odd. I myself have very little memory of my life before the age of 8. And even then, for the few years after that I remember events not by the series of happenings rather by the emotions connected to them.

This has been frustrating for therapy sessions as we've been nearly unable to do 'memory work'. She seems to think it is from all the ECT I've had but I keep telling her my inability to remember has always been this way.