I was curious with the difference between schizophrenia and DID, since most mental illnesses overlap tremendously. If anyone has a better source, you're welcome to elaborate: "Schizophrenia and dissociative identity disorder are often confused, but they are very different. Schizophrenia is a severe mental illness involving chronic (or recurrent) psychosis, characterized mainly by hearing or seeing things that aren't…
I had a friend who I thought was borderline, and later suspected to have DID. She sometimes said delusional things like she thought she was an alien, or that Jesus was inside her, or that she was a reincarnated dolphin, etc. Other people told me she would get weird in conversations, a lot like the "react oddly in conversations, not respond, or talk to themselves" description in the Wikipedia article. Stuff that schizophrenic people do.
When I asked about it, she said she realized that it didn't make sense that she was a reincarnated dolphin and that she didn't know why she believed those things. Schizophrenic people don't really have that kind of self-awareness.