My son is 17 years old. He lost his father in 2012. Over the past few years, at times, he has said he hears voices. It comes and goes, he says. He plays video games quite a bit and had speech problems when he was younger. Here recently, he has told me that he has seen his Dad. That he tells him negative things. He says he knows its not real and otherwise seems happy and not withdrawn. He works 2 jobs and does decent in school. He s also had a couple instances of dizziness and low blood pressure...upon which we were told was normal for a growing teen boy. But I m really concerned with these recent events of seeing his deceased father. Any advice would be very appreciated. Thanks so much.