Migraine Attack Pain Phase Prediction Study

Inclusion Criteria: * Age between 15 years and 69 years. * Diagnosed with migraine by a headache neurologist and according to the criteria proposed by ICHD-3. * History of migraine of at least 1 year of evolution. * Normal neurological examination. * Have given your informed consent. * Be able to describe your clinical situation and the characteristics of your headache. * Have an average of 10 to 14 migraine days per month in the three months prior to inclusion (high-frequency episodic migraine). * User-level management capacity of "smartphone" type electronic devices. * Be able to complete two months of study follow-up. Exclusion Criteria: * Presence of another type of headache, with the exception of headache due to excessive use of analgesic medication. * Cognitive deficiency or any other pathology that may prevent or make it difficult for the patient to perform the study correctly. * Neurological focus in the examination. * Pregnancy or breastfeeding period. * Patients with known heart disease or bronchopathy, Sjögren\'s syndrome, diabetes mellitus, or hypo/hyperthyroidism. * Carriers of pacemakers, neurostimulators or any other electronic device that is considered to make the interpretation of biometric records difficult. * Anatomical problem that makes the use of the device impossible. * Patients in whom it is expected that a change in migraine preventive treatment or other usual treatment will be possible during the study period.