Woman (40s) in chronic musculoskeletal pain (low back pain, somatization), with psychosocial problems (stress, anxiety, difficulties with sleep, kinesiophobia) that comes to physiotherapy clinic in order to get helped (doctor referral, otherwise she will have a surgery). The problem started after giving birth to her 3 years old son. Other therapies have not helped, she is disappointed, angry. The physiotherapist will propose a new therapy in order to help including exercisebehaviour change. She is accompanied by a member of her family (her father), she is divorced and she leaves at her parents’ house with her 3 children.