Interoceptive Exposure as a Treatment Option for Disabling Fear of Pain

Inclusion Criteria: * Presence of chronic pain (i.e. pain present for minimum of 3 months following tissue damage) * 18 years or older * Capacity to give informed consent * Appropriate diagnostic investigations in other specialties as appropriate have been exhausted and first line interventions, like analgesia, have been tried. * Participant has appropriate expectations regarding psychological treatment, i.e. does not expect injections etc. Exclusion Criteria: * Insufficient understanding of English or additional needs which mean the potential participant is unable to complete questionnaires independently. This is because the research project does not have the resources to make significant adaptations to the materials i.e. translation into another language or into Braille. * Unable to meet the demands of the study (i.e. daily recording of data, daily practice of IE, coming for sessions to St James' Hospital).