My parents knew I wasn’t right when I was about 5. I’ve had the ADD, ADHD, PTSD, bipolar, schizoaffective, to Sz labels in my life until my huge break when I was 17.
When I was 10 my “imaginary” friends were still vividly real and giving me bad advice and trying to talk me into giving them my blood so they could be real. I also got a message from God that year and I was sure I had developed sonic hearing. (That turned out to be my voices.) I didn’t think I was hearing voices. I was hearing the neighbors and the all the people across town.
I’m sorry the Autism is getting in the way of the communication. But he has to be assessed by a pro. No one here should try and diagnose from a web site.
If his anxiety is worse then he’s suffering and needs some relief. But voices aren’t an SZ trait only. Just from Wikipedia (not that I would ever diagnose from that shake source) there are a list of mental illnesses that can have hallucinations and voices other then JUST Sz.
schizophrenia and schizophreniform disorder
affective (mood) disorders, including severe depression, and severe depression or mania in bipolar disorder (manic depression).
schizoaffective disorder, involving symptoms of both schizophrenia and mood disorders
brief psychotic disorder, or acute/transient psychotic disorder
certain personality disorders at times of stress (including paranoid personality disorder, schizoid personality disorder, and borderline personality disorder)
major depressive disorder in its severe form although it is possible and more likely to have severe depression without psychosis
bipolar disorder in severe mania and/or severe depression although it is possible to have severe mania and/or severe depression
post-traumatic stress disorder
Sometimes in obsessive-compulsive disorder
He really needs to be seen by a pro. I’m sorry he has to go through this.
I’d say check out more of the main site for FAQ
and of course