taVNS Treatment for Fibromyalgia

Inclusion Criteria:

• Meet the American College of Rheumatology (ACR) 1990 classification criteria and theACR 2010 diagnostic criteria for fibromyalgia as determined by clinicians.

• Willingness to complete a 4-week, twice-a-day treatments.

• At least a 10th grade English-reading level; English can be a second languageprovided that the patients understand all questions used in the assessment measures.

Exclusion Criteria:

• Diagnosed with medical conditions that are known to contribute to fibromyalgiasymptomatology, such as thyroid disease, inflammatory arthritis, systemic lupuserythematosus, rheumatoid arthritis, myositis, vasculitis, or Sjogren's syndrome.

• History of cardiac, respiratory, or nervous system disease that, in theinvestigator's judgment, precludes participation in the study because of aheightened potential for adverse outcome. For example: asthma or claustrophobia.

• Personal history of medical or psychiatric illness as determined by investigator.

• Pregnant or lactating.

• Less than a 10th grade English-reading level; English can be a second languageprovided that the patients understand all questions used in the assessment measures.