I don't quite know how to deal with this. ds2 (aged 9, almost 10) is very occasionally pretty volatile. This morning he was arguing with ds1 (nothing unusual there) and pulled a large bread knife out of the drawer and threatened him that he would stab him.
Obviously I read the riot act to him but he (worryingly) focuses on what ds1 had done to him and the fact he pulled a knife doesn't seem to bother him. This isn't the first time he has threatened something like this and I am now starting to worry for him and about him.
Other worrying things are that he doesn't seem to realise when he is upsetting others and finds it hard to make friends, he will stand right up close to you fiddling with your buttons, he can be very hyper at times and punishments don't bother him.
Speaking with dh about this, we wonder if it is something that we should seek professional help with. But where and who would I go to? Am I over reacting?