YOu can refer him to mental health services - family are listened to in these cases. You need to see the GP and tell him and just go over your son's head on this. It can be managed and some people only have one episode and are better again. Ithink this is serious enough to keep going back again and again until someone listens to you.
“You have power over your mind - not outside events. Realize this, and you will find strength.” Marcus Aurelius
Hi Nathan, I know its a while since you posted and I hope that you and your son now have the support that you need. What your son is experiencing sounds very familiar. My Husband suffers episodes of psychosis which are very similar to this. The good news is that the right support can make a huge difference. Let me know if theres any support I can offer, its a long hard road, but it can improve.