Psychosis

Fortunately, I have never succumbed to the psychosis they call love.

He is suffering from a mental illness that can lead to insomnia, depression, anxiety, inability to concentrate, loss of appetite, suicidal thoughts, high blood pressure, and bouts of uncontrolled aggression. This is a form of psychosis which is generally known in common parlance as "love."

Your yelling and howling is called a psychosis. I ask, I beg you to see a therapist before you get institutionalized.

Fadil's psychosis took over.

Layla suffered from psychosis.

Clark Kirby has a psychosis about his native language, English.

His behavior is absolutely in line with psychosis.

Manganism has been known about since the 19th century, when miners exposed to ores containing manganese[…]began to totter, slur their speech and behave like someone inebriated. The poisoning was irreversible, and soon ended in psychosis and death.