I have a memory of being able to levitate if I jumped as high as I could in one place and flapped my arms. I don't know how long I subconsciously believed this, only reflecting upon how absurd it was when I almost said it out loud when I was not quite a teenager.
When I was very young, I somehow thought I invented the word 'frustrated' as well. I can only attribute this to some delusional dream.
Probably more coincidence than dream delusion was when I found out my action figure that I named 'Captain America' was actually a super hero named Captain America. I still feel weird when I see that character. I don't plan on seeing the movie.
12 years ago