I was wondering if this had anything to do with bpd or just any type of disorder. 
For as long as I can remember I’ve had extremely vivid dreams. I can remember 4 different dreams perfectly I had whenever I was a small kid. Then ever since I hit high school and left I’ve been having extremely vivid dreams that sometimes make me question whether it was reality or not. In a lot of my dreams I’m also self aware. Maybe not completely self aware but I’m able to have logic and think things in my dreams. I’m not sure how to explain it but I’m sure if anyone else relates they’ll understand. Many of my dreams are reoccurring nightmares, dreams about people abandoning me, or dreams that I’m in some type of game. All the way from game shows to actual video games. I have so many dreams collected by now I’m honestly thinking of writing a bunch of short stories. Kinda got off topic there but you catch what I’m trying to throw. 
Now with deja vu. I remember the very first moment I had. I was probably about 10 with my mom and we were window shopping when I saw a rusty red bike in the corner of some shop. Immediately I started freaking out telling my mom I had seen that bike before in that same exact spot. I was thinking all day about it whenever I realized it had been in a dream I remembered. Ever since then I’ve had deja vu about past dreams I’ve had. Thank god none of them were the nightmares but really just scenes in the dreams. 
If none of this makes sense I’m sorry but if it does pleeeeaaasse reply so I know I’m not alone with this haha.