i still remember being in the middle of the class and my subconscious leaving my body??

It was so weird...

i was in the middle of class, then all of a sudden, my head goes BOOOOOOOOM then suddenly, I'm not the same person...

neither of my memories are the same and when i tell my friends something like, a storytime we had together, they look at me like i swallowed 1000g of kokaine 

how do i return to my original self pls