 I'm very worried about my son, more than worried at this point. Terrified, his behavior these past few weeks is not normal, not healthy. It makes me think there's something wrong. At first, he would just come and stand at the doorway. He did this at night, just before I'd be ready to fall asleep. I'd roll over to turn off the lamp, and he'd be standing there in the doorway. I used to try to speak to him. I don't do that anymore. He never has answered me, he just stares. A couple of days ago, he graduated from standing in the doorway to coming in and sitting on the bed. He still doesn't speak. I've asked him what he wants. I've asked him if anything is bothering him. It's not like him to be so quiet. He usually waits until my wife is asleep. That's the part that gets me. She always falls asleep before me, and he has never come in when she's awake. But then, she didn't have a hand in this. If something doesn't change soon, I don't know what I'm going to do. I'm starting to think that he knows that I'm...