All of the following are symptoms of conduct disorder except.

A. Overreaction of a medical symptom. While individuals with illness anxiety disorder (IAD) may misinterpret normal bodily sensations as signs of serious illness, the key feature is excessive health-related worry in the absence of significant symptoms, rather than just overreacting to existing symptoms.

B. Faked symptoms. Feigning symptoms is characteristic of factitious disorder (formerly Munchausen syndrome) or malingering, where individuals intentionally produce or exaggerate symptoms for attention or external gain. In IAD, the concern is genuine but unfounded, rather than intentionally fabricated.

C. Abnormal voluntary motor or sensory dysfunction. This describes conversion disorder (functional neurological symptom disorder), where individuals experience neurological symptoms (e.g., paralysis, blindness, or seizures) without a medical explanation, typically triggered by psychological stress.

D. Worry about health despite no symptoms. Illness anxiety disorder (IAD) is marked by persistent, excessive fear of having a serious illness, despite minimal or no symptoms and repeated medical reassurance. Patients often engage in excessive health-related behaviors (e.g., frequent doctor visits, checking their body) or avoid medical care altogether due to fear of diagnosis.

A. "Made up" words. This describes neologisms, where individuals create new, nonsensical words that have meaning only to them. It is often seen in schizophrenia and other psychotic disorders.

B. Repeating of another's words. This describes echolalia, a speech disturbance where individuals involuntarily repeat words or phrases spoken by others. It is common in autism spectrum disorder, catatonia, and some neurological conditions.

C. Thought of the speaker wanders off in another direction. Tangentiality occurs when a person's train of thought drifts away from the original topic and never returns to it. Unlike circumstantial speech, where the person eventually returns to the point, tangential thinking leads to incoherent, off-topic responses, commonly seen in schizophrenia, mania, and cognitive disorders.

D. Meaningless rhythm of words. This describes word salad, where speech consists of random, disorganized, and nonsensical words without logical structure. It is a severe thought disorder seen in advanced schizophrenia or delirium.