Hi, even though i can t come to a conclusion from your minimal history, i could give you some differential diagnosis for your son s symptoms. If your son is highly active, running here and there, inattentive, careless about objects, not able to control his speed and complaints form school about his behavioral disturbance he might have some symptoms of Attention deficit and hyperkinetic disorder(ADHD). In ADHD school academic performance will be lower. Some children have sudden attacks of screaming with fear during first few hours of sleep, which can t be recalled by the at morning. This is a frequent problem in nearly 5-10% of children between 5-15 years, known as sleep terrors. It is a type of sleep disorder. Both above conditions can be manageable with few drugs and behavior therapy. NIMHANS is the best center which can address both conditions. As for my knowledge they charge very little amount like 10-20 rupees for out patient consultation. so you can bring your son at any day except sunday.