<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have an 11 year old grandson that is always tired and grouchy. He acts childish at times and almost hyperactive. He can calm down when he is involved in a project such as building a Lego kit. Today about 5:00 he fell asleep and when he woke about an hour and 12 later, he angrily pounded his footsteps as he went downstair and demanded to know when dinner would be ready. What is going on with him?  <response>: DearWelcome to ChatDoctorWe understand your concerns went through your details. The given symptoms do not warrant hyperactivity. Tiredness and grouchy symptoms are not regarded to be part of hyperactivity. Being hyperactive at times is also not hyperactivity. Another thing to note is he is attentive, calm and involved when doing some work project which is quite engrossing or requires attention. Therefore, Attention deficit can also be almost set aside. You need to observe his general behavior for any behavior problems such as aggressiveness or attention seeking. Please consult a child psychologist for diagnosis, or you may provide detailed symptom list here. If you require more of my help in this aspect, please use this URL. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. Take care. 