I can't pay attention in class?

hey im kind of like that. im 12 and i never could pay attention. i went to a b+ student to straight f's on my report card lol. sucks. apparently after my teacher filled out a questionare, i have adhd. i think just giving a questionare to see i have adhd is complete bs but thats not the point. maybe you have something like that no offence....ask ur doctor or something if you just space out all the time