Answer:
The correct answer is: General Anxiety Disorder (GAD)
Step-by-step explanation:
Generalized Anxiety Disorder is a psychological disorder characterized by an excessive amount of preoccupation and anxiety about everyday life situations. People diagnosed with a general anxiety disorder may overthink and get anxious about their work-life, family life, relationships, friendships, and so on.
They usually picture the worst-case scenario in multiple life areas, as they always expect disaster to happen.
In this particular case, Dwayne is constantly concerned about things at work even when he is at home and he is constantly worried about his home life when he is at work. He also has free-floating anxiety that leaves him tense and irritable which impairs his concentration and leaves him with many sleepless nights. From his symptoms a clinician will most likely diagnose Dwayne with General Anxiety Disorder.