Behaviour problems since 6/7.?

im now 17 and when i was 15 i was tested for ADHD but they said no i havent but i dident really open up about my problems. when i say to my self right im gonna do my room it takes me about 1 hour to get it done. when my parents or someone says no or something i flip and shout and scream and then put my head in my hands and cry and then smash things up. i swear at people alot and say stuff without thinking. when my people pee me off i kick them or punch them. and i say i dont mean it. or i dident do it. and then sometimes laugh. i can only concentrate for like 5 mins and then say to my mates' hey so what you doing' when they are doing there work. and i start walking out of class or wander around the room and then when i sit down i tap my feet or tap my fingers or flick something. and i dont listen when someones speaking to me e.g my teacher i say 'what' straight after. and in my primary school i used to pull my teachers leg, swear, hit other kid's,. and in high school aswell i got kicked out of two high schools. i talk alot. i can be really agressive and have the odd spells of being hyper. when my teacher said to my have you brung that dvd in i said omg i forgot. its a big effort to do one piece of worksheet. and in primary school i cracked this lads head open and stealed stuff aswell. and i got kicked out of my high school for smashing this girl up and then my teacher grabbed me away. im going to make an appointment with a doctor again. hopefully i will get this sorted. and what kind of behaviour problem does this sound like?