My son has been showing sign of bipolar depression. I have did research online for some of the sign and symptoms. One of the signs were being very smart. My son could pass any test from time he was in kindergarten. Before entering he could talk when he was just months old. He knew his birthday including the year at 10 months old. He could carry a conservation on the phone like an adult. Lately he has had poor performance in school. Some people think he just lazy and has given up on him. He also has other symptoms. He is sometimes depressed and sometimes he is in a rage messing up everything in the house. He has poor hygiene and does things that are not smart for an 18 year old. One day in school he lit a match and told the teacher he wanted to smell smoke. He had a car accident last year from drinking and almost killed himself. He is always talking about death and have said numerous times he don't care if he dies. Somedays he sits in his room on the computer and other days he is acting like a wild person. At one time he would not eat a plate of food and now he eats every 30 minutes. And I don't know when he sleeps because he walks around all through the house at night. Last week they expelled him from school, because he dancing around his chair and he would not behave. I explained to them that I am taking him to a place for mental issues who diagnose him as being depressed, but they did not care.