CAVA: Dizziness Trial

Inclusion Criteria: Adults aged 18 and over. * Patients experiencing episodes of true vertigo, with at least two episodes within the preceding month. Relevant medical conditions include Meniere's disease, Benign Paroxysmal Positional Vertigo (BPPV), recurrent vestibulopathy and vestibular migraine. * Able to commit to 30 days of continuous wear of the trial device as per the study plan. * Own a telephone. Exclusion Criteria: * Potential participants who have a history of dermatological disease, fragile skin, or damage around the forehead. * Potential participants who have an allergy to plasters and/or medical adhesives - (similarly to materials used in the device). * History of hypertension or cardiac problems (uncontrolled, acute or de-compensated - phase). * History of ear disease, or previous ear surgery. * History of psychotic/neurotic disorders or epilepsy. * History of eye disease, or previous eye surgery. * Pregnant or nursing mothers. * Potential participants who have taken part in a previous CAVA trial. * Potential participants who are currently taking part in another trial. * Unable to follow the testing protocol.