This study aims to explore whether patients' tendency to exaggerate or focus on pain (pain catastrophizing) is related to experiencing nausea and vomiting after surgery. The study will include patients undergoing laparoscopic cholecystectomy. Before surgery, patients will answer questions measuring pain catastrophizing and rate their pain during intravenous cannulation. Nausea and vomiting will be assessed at various times during the first 24 hours after surgery. The results may help better understand how psychological factors affect postoperative symptoms.