Deja vu

This afternoon, I listened to some old recordings of my radio show while I worked on a biology project. I got a really strange feeling - a funny mix of deja vu (from sort of remembering what I did say) and familiarity (knowing what I would say).
I had a similar experience over the weekend, where I recounted a lot of my life to Beth. I've not really talked about or 'dealt with' a lot of things that happened in my life between the ages of 18-22, and she was the first person I've given a full run down to. Or at least, as full as I can recall. It was that sense of familiarity again, where parts of your life just drift by, and get brought up when you think about something related to it. It isn't a very linear story.