Halifax Somatic Symptoms Disorder Trial

Inclusion Criteria: * Patients aged 18-65 years * Emergency department physician determines that physical symptoms and/ or impairment associated with the physical symptoms are not explained by physical pathology. * Patients must meet diagnostic criteria for a Somatic Symptom or Related Disorder (SSRD) as assessed by the Structured Clinical Interview for DSM Disorders 5th Edition Research Version (SCID-5-RV). * Symptom duration of at least 3 months or recurrently each month. * Cut off of at least 4 symptoms for men and 6 for women using the SOMS. * Participants consent to audio-visual taped sessions and the investigator accessing their electronic health records, if deemed necessary. * Stable with pharmacotherapy over previous 4 weeks. Exclusion Criteria: * Symptoms which can be entirely explained by a medical condition. * Already receiving ongoing psychological treatment. * The research physician determines that the physical symptoms and/ or impairment has definite physical pathology. * Any diagnosis of current psychosis, bipolar or manic depression, substance abuse/dependence or active suicidality as assessed by the SCID-5-RV. * Complaints which are considered to be malingering or factitious. * Patients who are unable to give informed consent to treatment.