DDx
- Generalized anxiety disorder
- Hyperthyroidism
- Medication or substance abuse, e.g., caffeine, nicotine, cocaine, amphetamines, pseudoephedrine
- Medication or substance withdrawal, e.g., alcohol, benzodiazepines
- Major depressive disorder
- Adjustment disorder
- Somatoform disorder (e.g., somatization)
- Other anxiety disorder, e.g., obsessive-compulsive disorder, panic disorder
- Pheochromocytoma