Maris is plagued by a constant sense of dread and apprehension about the future. His thinking is jumbled, confused and he has difficulty concentrating. Physically, he is jittery,
Agitated, and constantly feels nauseated. He is so worried about his own bodily sensations
And the fear that he is "losing control," that he has difficulty focusing on anything else. His
Symptoms are most suggestive of ______.