A 44-year-old Caucasian female visits her physician. She complains of generalized aching, muscle tenderness and stiffness, fatigue, and insomnia. After a physical exam, you diagnose her with...

A 44-year-old Caucasian female visits her physician. She complains of generalized aching, muscle tenderness and stiffness, fatigue, and insomnia. After a physical exam, you diagnose her with fibromyalgia. Which of the following statements regarding her disease is true?

A. No physical, lab, or imaging abnormalities are present.

B. Peripheral nerve injury or dysfunction is the most common cause.

C. Treatment includes injection of a portion of the sympathetic chain with local, long-lasting anesthetic (sympathetic blockade).

D. The treatment of choice is an NSAID.