DID/PTSD Cause of Delusions?

I've hallucinated my whole life. Before 13, it happened but was pretty manageable. At 13 I had my first experience of hallucinations indistinguishable from reality. I got lost in them because they were so real to me, an example would be that one walk to a park under the impression I'd been going to a gas station 20 years in the future. It was also around this time I began seeing images in my head, repetitive and persistent, of varying terrible things. Trying to find a logical reasoning behind this, at 13, I assumed very quickly I'd cracked. But when I wasn't what cinema had portrayed as insane I began to question that theory and soon believed I was in war with the devil. Eventually that belief dissipated and I was back to just having very serious hallucinations intermittently, but consistently saw and heard plenty that no one else seemed to.

Now, where I'm getting at with this is a recent video I watched on YouTube covered Capgras delusions. Until today, I didn't know that this thing I've experienced intermittently (and infrequently) since I was 16 or 17, I think, even had a name. And that terrified me. Here's the thing, I have DID. How can DID cause delusions? As far as I understood it, it is fairly common to hallucinate and have DID but the disorder doesn't cause delusions. My other diagnosis is major depressive disorder and, yeah, I've fallen into some serious suicidal delusions that sent me IP. But I've been told my multiple psychiatrists that the depression doesn't account for all of it. However, every doctor seemed so wrapped up in my hallucinations they seemed to neglect my concerns about these delusional episodes. They just said, "PTSD is a hard thing to deal with." Okay, so is it PTSD that's causing me to become delusional?

The research I've done with capgras delusions has come up with Alzheimers, dementia, Parkinson's, previous brain trauma or schizophrenia. There was a small period of time where I did carry that diagnosis with me, but my T quickly drifted away from that and hyper focused on DID. I won't even try to deny I have DID anymore, it slaps me in the face too often, but my questions were never answered. Are these delusions caused by one of my previous brain injuries? If so, should I get checked out by a neurologist? Or are they caused by schizophrenia? If so, how can I have schizophrenia and DID? Is that even possible?

I'm hoping some more knowledgeable members on here can help me to answer these questions. I know you aren't doctors or anything, but doctors won't even generalize about it.

Yes, you can have schizophrenia and DID.

DID does not cause delusions. there is a diagnostic criteria that says reality remains intact with DID.

that said....

you can have more than one mental disorder at the same time...

example I have bipolar disorder, dissociative disorders, anxiety disorders PTSD disorders and some physical health problems...

the way my treatment provider tells them apart is using the DSM 5 diagnostics...

example one of the diagnostics for dissociative disorders is reality remains intact... therefore any time I am having any delusions it is because of my not dissociative disorders (bipolar disorder, anxiety disorders....)

what helps me is having my medications adjusted or changed completely.

my suggestion is contact your treatment provider, they will be able to tell you which of your disorders that your delusions are part of.

I’m sending hugs to you my friend