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Episode: "Shiny Happy People"
In a surprising turn for a Disney star, Lovato plays a suspected schizophrenic who tries to claw her own eyes out and stab herself in the heart with a syringe. Suspecting there could be something else wrong, Alex runs extensive tests that lead to the real culprit: She has a small hole in her inner ear, which amplifies sound, causing her great pain. She wasn't crazy after all.