psychoneurotic

Example:After a series of difficult personal challenges, he became quite neurotic.

Definition:Showing or characterized by mental instability, instability in mood, or emotional excess and conflict, often as a result of childhood experiences or unresolved psychological conflicts.

Example:The patient's hysterical behavior was perplexing and difficult to diagnose.

Definition:Exhibiting exaggerated anxiety, fear, or emotional instability, often under the guise of an emotional or physical ailment, without a clear organic basis.