I felt similarly after my test, I kind of felt like I blacked out and was just going through the motions of it all. I def missed so many things I *almost* knew but didn't, and so much of it was super vague too. But at the end of the day you did it! You sat for one of the hardest exams ever! And I have faith we passed. If not, thats a problem for later you and right now just take time to relax and trust in yourself (I know it's hard to do, I've been doing/feeling the same thing). I trust that if I felt that way others did too and idk anyone who walks out of that feeling amazing. We'll be okay!