My son will be 4 next month. He has always been attached, happy, calm and sweet at home. Little to no tantrums. When he started preschool is when the trouble started. The teachers said he exhibited ADHD like symptoms, always running around, not focusing, even during free play. Impossible to settle/stop chatting during story time. That is 100% opposite of how he is at home and on playdates etc, so I thought it might be the school environment--huge class, 22 kids. I switched him to a smaller, more structured preschool. There, the teachers said he was doing alright, except that he was getting in other kids faces and annoying them. They would tell him to stop, but he didn't stop. He was getting better though. So far so good. He seemed happy to go to school. Then, last week, they dropped the bomb... said the exact same thing the first school said, he runs around in circles instead of engaging in a toy, even during free play. He blurts out answers and ruins games. He can't settle and stop chattering during story time. They say he is sweet, not mean or aggressive, it seems to them like a self control/impulse control thing. They say he fogs out, appears to not be listening to them, even when spoken to directly, but then can repeat everything. At birthday parties and play dates, he is social, happy, wonderful. I can pretty much take him anywhere, restaurants, library, etc. He's a good boy! But at school, he is not controllable. Could this be early signs of ADHD? How can it be so uncontrollable at school, and non existant at home?