BACKGROUND: fibromyalgia is a non-inflammatory musculoskeletal syndrome, with a chronic nature and unknown aetiology, characterized by widespread pain, increase in sensibility to palpation and by symptoms such as insomnia, stiffness, fatigue, psychological sickness, intolerance to cold and otologic complaints. PROCEDURES: two female patients diagnosed with fibromyalgia, aged 52 to 61 years, were evaluated in the Otoneurology sector of a institution, in September 2008, and consulted for: dizziness, paraesthesia, perception of movement of objects, imbalance on walking, falls, fatigue, depression, headaches, and difficulty in listening and moving the neck. They were submitted to the following procedures: anamnesis, otological inspection, audiologic evaluation and vestibular exam through vectoelectronystagmography. RESULTS: the following discoveries were noted: Patient 1 - hearing loss of the sensorineural type from 2 KHz in the left ear, normal hearing thresholds in the right ear and hypo-reflexia with an absolute value of 42ºC in the caloric test in the right ear. Patient 2 - normal hearing thresholds, bilaterally, and hyper-reflexia with an absolute value of 42ºC in the caloric test in the right ear with an intense neurovegetative manifestation. CONCLUSION: the submitted cases demonstrated the importance of audiologic evaluations and vestibular exams in the contribution to elaboration of strategies used in the therapeutic consolidation of fibromyalgia suggesting the performance of those exams as a clinical routine.