My 5 year old ds is very preoccupied with death, since the concept was introduced to him last November at school. He's very worried about his dad dying (very strongly attached to him) but also worries about dying himself, about me or his grandparents dying, and about what happens when we die. I've tried reassuring him and empathising with him, I've told him we won't die until we are very old (hoping that this won't turn out to be untrue) and that when we die there are people who love us who will help us in the afterlife so we none of us will ever be alone. None of this seems to have really helped so I'm considering sending him to a play therapist so that he can work through his anxieties. Am I over reacting?