What Should I Do?

I have a 9 year old little boy. He is my grandson but I have had him his whole life. He is a wonderful person and has a heart of gold. I don't say this because he is my grandson I say this because it is true not only in my eyes but in the eyes of everyone that meet him. He has come to me with a problem that I never new he had. It has been going on for as long as he can remember. He tells me he hears things like somebody calling his name. Thinking it was me, he comes running to me saying yes you called but I have never said a word. He also tells me he get woken up at night from someone saying Shhhhh or what are you doing. Little things have come to light now that him and I have talked. Like right before I call him for dinner he pops up in the kitchen to say I knew you were going to call me. I would laugh and say yes you have great timing, But looking back you can only have good timing so many times. Also I will take him somewhere he has never been before and he will say I know this place Me being me I would think of some place we may have been that he would be thinking of. But again only so many times this can happen also. Anyway he came to talk to me about it because he is getting annoyed with the things he hears and it is starting to bother him. I am at a loss I know nothing of psychic and have been looking for help for a while and have found nothing. I want to help him I can't stand seeing him unhappy. So if anyone can help or know were I can find help please let me know Thank You Paddy