My sesne is that you should let him be. After all, it can hardly be said that he is struggling in
schoolPreschooler development
Preschooler test
Preschooler test or procedure preparation
School age child development
School age test or procedure preparation
School-age children development. The reality is that he is excelling in his academics. His behavior is not something you have to worry about - you are making a problem where there is none. Now, one thing to think about is how it will be for him to be in a grade where the other children are older. This can be quite difficult emotionally, even if is able to handle the work itself. So keep a watch on that. But, as far as the question of ADHD goes, I think you can ignore that.