Welcome to Just answer !
Since how many days has this been happening ?
Have you asked him whether there is any problem at school ?
There are no problems at school - i have asked him and have talked to his teacher. The school issue is just an example, he also gets frustrated when thing do go together the way he anticipates, he gets frustrated when he is tired...but he can not 'turn off' his brain to sleep at night. His bedtime is 8:00 and there are days that he is still up laying there untils 11:00. He doesn't have toys in his room, he is just laying there thinking....then wakes up tired, frustrated and crabby.