Sure,there are lots of experiences you re-do or re-live in your lifetime. You may do something again later in life and experience deja-vu. The older you get the more you experience it,not because you become more aware,but because you FORGET what you did earlier in life.
for me this really does not match what I am feeling. It is more like being you are almost 1/10th of a second out of sync with reality or you are seeing a 3d movie with out the glasses. Not that it is blurry but like you have two streams of information coming in. Same people, same hairstyles, same conversation, same seated positions, same music playing, same smells in the air. Identical situation. In my first example I was young, I had experienced little of the bar scene. Actually it was probably the first bar I had gone to yet the layout was absolutely in keeping with my perceived memory.
The other thing is I personally do not perceive memories as if i am experiencing them.
You know the only thing I experience that is so life like is a dream. It could be some sort of a modified dream state interacting with present input.
the other thing with it being just out of phase with real reality it is not like you feel the ability to predict the conversation or anything like that.
3 or 4 seconds of deja vu all out of sync by a couple of frames. It is really a wierd state. Maybe it is a temporal rift in time:)
My son started talking about Deja Vu and he has them quite frequently where as I probably have 1 every 10 years or so.