I don't know how the laws are in your state or country...but I know here in Pennsylvania we have this thing where if your son is a danger to himself or others you can sign a petition to make him get help, which usually means hospitalization.

It doesn't seem that your son is that severe but if he gets worse or you think he is a danger in any way and you are in the states I think you can do this. I think it's called a 302 petition or whatever.

Sorry that you have to see him this way and deal with this. You have my best wishes.