I don't know if actually classifies as déjà vu, but I always have a dream or a flash about something. I remember with who I was and where I was in that dream/flash... and then, later, it happens.

Ex.: once I had dream I was eating lunch and talking about architecture with a guy I don't really talk that much in my class. So, I woke up and thought: "okay, this is never going to happen, I don't even talk or like to talk with that guy, why would I eat with him?". So, weeks passed and it was my friend's birthday and that guy I don't talk that much was invited... and we all eat lunch together, he was sitting in front of me, talking about the same subject he was talking in the dream. Really freaky.

This happens quite often, seriously. I think it fits what Kitty said, it is like having a déjà vu feeling about having a déjà vu feeling in the past. Maybe I just imagined the first part where I had a déjà vu, so when it actually happened, the second déjà vu was actually the first one because I imagined the first one 😕 I'm so lost.