AKT-4401

AKT-4401

A middle-aged couple visits the clinic. The wife reports that her spouse has been displaying unusual behavior, specifically, constantly checking on their son throughout the day and even at night. On average, he would check around ten to twenty times. When questioned, he explains that a few months ago, he had a frightening experience where he lost his son in a crowded mall, and he keeps replaying the incident in his head. The husband avoids going to crowded places, experiences anxiety, and has trouble sleeping. There is no significant medical or psychiatric history.

What is the most probable diagnosis?