Vibratory Stimulation for the Treatment of Chronic Pain

Inclusion Criteria: * Age greater than or equal to 18 years old. * Diagnosis of either chronic pelvic pain, functional abdominal pain, axial low back pain, or migraine with or without aura of at least 3 months duration. * English speaking * Ability and willingness to complete questionnaires and in-person assessments * Current average daily pain score of greater than or equal to 4 on the Numeric Rating Scale of Pain (0-10 scale) * For patients with migraine diagnosis they must report at least 2 headaches in the baseline headache diary in the 30 days preceding randomization. Exclusion Criteria: * Any conditions causing inability to complete assessments (education, cognitive ability, mental status, medical status) * Any significant psychiatric problems, including acute confusional state (delirium), ongoing psychosis, or clinically significant depression * Any suicidality as assessed by answer of greater than 0 on question 9 the PHQ-9 assessing suicidal thoughts. * Any current illicit drug or alcohol abuse. * Any history of recurrent or unprovoked seizures. * Participation in another drug, device, or biologics trial concurrently or within the preceding 30 days. * Pregnancy, breast-feeding or lack of reliable contraception * Changes in pain medications in the previous 4 weeks * Implanted electrical stimulation device. * Skin infection over stimulation sites. * Any pain interventions in the preceding 6 weeks (epidural steroid injection, sympathetic block, peripheral nerve block, lumbar medial branch blocks) Any botulinum toxin injection in the previous 3 months * For patients with migraine diagnosis additional exclusion criteria include receipt of preventive anti-migraine treatment in the past 3 months, failure on greater than or equal to 3 well-conducted preventive drug trials, concurrent medication overuse headache diagnosis, and concurrent frequent/chronic tension type headache. 4\. Frequent/chronic tension type headache