how young were your children when you knew they were hyperactive? was it really noticeable at 2 yrs old...reason im asking is that my third child is completely off the scale in activity..always looking for trouble and searching for ways of doing something he shouldnt!! today he managed to empty 3 tubes of toothpaste all over bathroom and himself in a split second...daily empties fridge of contents..juice and milk cartons being his fav!!! he literally is like a whirlwind through the house constantly/annoys other children deliberately to get a reaction!1..cant get anything done as he needs watching contantly but he will think up ways to slip away and do mischief..surely its not just mischief making at the extreme..im getting worried and incredibly stressed ,especially as i already have an Autistic son!!