What disorder does the Riddler have in Gotham?

I'm curious as to what disorder Ed Nygma has from Gotham. I know he has OCD from the comics but I'm talking about how his Riddler persona appears to and interacts with him. Something that caught my eye is how the Riddler persona can "interact", for lack of a better word, with the world around Ed.

I'm talking about the scene in Gotham 4x17 when he visits Penguin in Arkham and holds up the letter showing the secret code. Ed's too stupid to have realized the code, but The Riddler figured it out and highlighted it for him. This means he is subconsciously super intelligent via the Riddler. If he has DID, can one identity surpass the intellectual capabilities of another, because I assumed all of them would be confined to the same cognitive function?

So does he have DID, schizophrenia, or just straight up insanity?

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What disorder does the Riddler have in Gotham? - From above crop African American male in casual clothes sitting on comfy couch and answering professional female consultant questions in modern psychotherapy office

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What disability does The Riddler have?

More than your average textbook weirdo, The Riddler is a patient of Autism Spectrum Disorder. Categorized by inappropriate social interactions, severe behavioral disturbances, and obsessive habits, this disorder aptly explicates The Riddler's compulsion to ask riddles as well as his total lack of social skills.

What mental illness does The Riddler have in Batman?

[Batman Forever's Riddler] appears to have borderline personality disorder, an unstable, incomplete identity characterized by chaos in one's thoughts, moods, actions, and self-concept...

What is nygma disorder?

However, while autism spectrum disorder might explain some of his social interactions, it offers little in the way of answers about his impending criminal life. Autism isn't associated with violent crime, so something else must have caused Edward Nygma to become The Riddler.

Gotham 4x14 Penguin help Ed become The Riddler AGAIN

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Images: Erik Mclean, Alex Green, Darya Sannikova, Andres Ayrton