split personality

i have someone else in my head that i talk to his real name is kaizo hence my name on this but i used to think he was my mind and that like everyone has but sometimes he can come out and control my body he can do what he wants no one really seems to notice but its as if im still there but im him.

so just wonderin is it usual do any of u have it?

hm reading other post things im guessin its tht DID alter thingy am i right here?

i would think so.