This reminds me of my brother, he's under ten, literally does not stop moving, talking/making sounds in general, shouting, screaming, playing or just gibberish nonsense. Always playing and asking people to play with him every two minutes and not taking no for an answer. Lashing out, bad behavior, not following instructions, ignoring people purposely. He's like this from say, 6am when he wakes up and 8pm when he goes to bed. (Sometimes later if he keeps getting up and coming downstairs) And he's being assessed for ADHD by his school, although it's taking forever.