An implantable neural stimulator for implantation in a patient, comprising: controller circuitry; neural stimulation output circuitry configured to deliver neural stimulation, wherein the controller circuitry is configured to control an intensity of the neural stimulation delivered by the neural stimulation output circuitry; an input configured to receive a trigger from the patient, wherein the controller circuitry is configured to detect the trigger; a memory with instructions operable on by the controller circuitry, wherein the instructions include: instructions for delivering neural stimulation using the neural stimulation output circuitry; instructions for implementing an up-titration routine to automatically increase the intensity of the neural stimulation from a lower intensity level to a higher intensity level; and characterised in that said instructions further include instructions for automatically decreasing the intensity of the neural stimulation from the higher intensity level to the lower intensity level in response to receiving the trigger from the patient, wherein the automatically increased intensity is maintained if the trigger from the patient is not received, wherein the neural stimulator is configured to allow the up-routine to increase the intensity only when specific conditions are met. controller circuitry; neural stimulation output circuitry configured to deliver neural stimulation, wherein the controller circuitry is configured to control an intensity of the neural stimulation delivered by the neural stimulation output circuitry; an input configured to receive a trigger from the patient, wherein the controller circuitry is configured to detect the trigger; a memory with instructions operable on by the controller circuitry, wherein the instructions include: instructions for delivering neural stimulation using the neural stimulation output circuitry; instructions for implementing an up-titration routine to automatically increase the intensity of the neural stimulation from a lower intensity level to a higher intensity level; and characterised in that said instructions further include instructions for automatically decreasing the intensity of the neural stimulation from the higher intensity level to the lower intensity level in response to receiving the trigger from the patient, wherein the automatically increased intensity is maintained if the trigger from the patient is not received, wherein the neural stimulator is configured to allow the up-routine to increase the intensity only when specific conditions are met. instructions for delivering neural stimulation using the neural stimulation output circuitry; instructions for implementing an up-titration routine to automatically increase the intensity of the neural stimulation from a lower intensity level to a higher intensity level; and characterised in that said instructions further include instructions for automatically decreasing the intensity of the neural stimulation from the higher intensity level to the lower intensity level in response to receiving the trigger from the patient, wherein the automatically increased intensity is maintained if the trigger from the patient is not received,