Anxiety

Asthma

Chronic obstructive pulmonary disease

Congestive heart failure

Depression

Fibromyalgia

Gastroesophageal reflux disease

Hyperthyroidism

Medications (see Table 2)

Menopause

Obstructive sleep apnea

Pain

Periodic limb movement disorder

Pruritus

Restless legs syndrome

Urinary incontinence