a wearable electrical stimulation device configured to be worn adjacent an outer surface of a neck or head of the patient, the electrical stimulation device comprising a housing coupled to a strap that extends around at least a portion of the patient's head, at least one feedback sensor, and one or more electrodes sized and configured to be placed adjacent the skin of the patient, the one or more electrodes configured to deliver an electrical stimulation transcutaneously to one or more treatment sites proximate the occipital nerve and to modulate a function of the neural tissue of the occipital nerve and/or adjacent non-neural tissue of the occipital nerve, while not damaging tissue interposed between the electrical stimulation device and the occipital nerve, wherein delivery of the electrical stimulation to the one or more treatment sites modulates the neural- and/or non-neural tissue of the occipital nerve, inhibiting nervous signaling and pain perception; and

a controller operatively coupled to the one or more electrodes of the electrical stimulation device and a power source supplying electrical energy to the one or more electrodes, wherein the controller is configured to direct operation of the electrical stimulation device to apply the electrical stimulation to the one or more treatment sites through the one or more electrodes, and wherein the controller is configured to dynamically adjust at least one parameter of the electrical stimulation in response to feedback information obtained via the at least one feedback sensor of the electrical stimulation device.