I have a 3 yr old daughter, she has a big attitude, when told NO she throws a fit, screams, and sometimes will throw things, beat on the door when told to go play in her room, I have a big issues with putting her on timeout she acts out a lot when in timeout, She will jump up and down and whine,She whines instead of using her words. She has a big problem listening when asked to do something, and even at bath time she whines about everything. I don't know if ADHD is hereditary Because i had ADHD when i was a child