Are You really dying? If so maybe you should ask him what his reasons are for telling verses not telling him. I know if my parent was dying and I had unfinished business I would want to know so I can make peace. Think of it this way your son may live with forever guilt if you die and he never finished his business. I'm telling you this because I have siblings who avoided my Dad and he died and I know they feel so bad about unfinished business they left undone. I am just trying to be helpful.