The Effect of Vagus Nerve Stimulation on Pain and Functional Activities in Individuals With Chronic Widespread Pain

Deep Exhalation Treatment: Participants will receive a set of standard balloons to use for deep exhalation. They will sit in a comfortable position, take a deep breath in and blow their breath continuously out into the balloon. They repeat the deep exhalation process for a total of 4 consecutive breaths. They perform this breathing exercise once every hour during waking hours each day.

Ear Electrical Stimulation Treatment: Participants will receive a small electrical stimulator and electrode set to be applied to their left ear. The investigators will train the participants to use the device safely and effectively. Once they are comfortable with the procedure, they will perform the procedure at home for 20 minutes twice daily.

The no intervention group will not receive treatment immediately after their baseline assessments, they will be scheduled for another visit after two weeks, then a new set of baseline measurements will be recorded as the post intervention data.