I kind of want to know what this might be, maybe not stop it unless it’s detrimental.

Lately I’ve been getting very weird, specific memories, that are literally only instances, popping up like Deja vu.

Like I see something at the store and it reminds me of something that happened in 3rd grade that I don’t at all remember; but I get that nostalgic, almost Deja vu connection. I have no idea what triggered it specifically or why, or even that it was a memory I had.
Tonight it was a Pokémon backpack, which reminded me of the feel and smell of something Pokémon related in my past, but I have no idea what I was remembering or when. Occasionally the ‘memories’ that are recalled are actually from dreams, some of them from years ago, and they still trigger that Deja vu feeling for a few moments.

Not sure if related, but in college, I would have an issue happen around fall where I would suddenly get a profound sense of forgetting and remembering too much at the same time. I think it was some kind of disassociation but no idea why it seemed to only be triggered most in fall and didn’t start till 18.