The Influence of Concomitant Irritable Bowel Syndrome on Gastro-Oesophageal Reflux Disease Symptoms and Severity.

"Two questionnaires will be provided to participants to complete before their routine tests (which they would already be having regardless of the study and are not affected by their participation in the study).~The questionnaires include: A Gastro-Oesophageal Reflux Symptom Questionnaire; and the ROME-IV Diagnostic IBS Module Questionnaire"