do i have multiple personalities?

[AwesomeguyInthercorner]

i dont really listen to girls, but i like to annoy them, but sometimes i just dont care if theyre there or not, i never get crushes on a girl, but half the time i can ignore one who is doing something like following me like a puppy, waving with four fingers every few seconds and going "h...hi..." and blushing her face off, and i get really hiper some times, like ill start running and screaming and try to tackle one of my friends, but sometimes i just watch them do stuff like that and i am really emotionless, especially when a lightning storm is coming through, and sometimes ill listen to the teacher, and then the next he'll give instructions adn ill yell something like "never! freedom" then hide under my desk because im embaressed, or just keep going on with it. do i have multiple personalities or do i just have a mood problem?