Inclusion Criteria:  Patients over 18 years of age; Patients with functional digestive disorder for more of 3 months; Patients assessed as part of routine care; Patients affiliated to the Social Security ; Patients not opposed to participation in the Centre  Exclusion Criteria:  Person deprived of liberty by administrative or judicial decision or major protected subject (under guardianship or curatorship); Patients unable for any reason to read, understand, respond questionnaires (visual, psychiatric, cognitive, etc.)