You Don’t Look Sick: Living with complex regional pain syndrome By Laura Abernethy, Assistant lifestyle editor Many people live with invisible illnesses – conditions that cause symptoms that affect their every day lives but on the outside, they look well. You Don’t Look Sick is our weekly series looking at what it’s like to live with a hidden condition. Patrick Day-Childs, 26, from Southampton, has complex regional pain syndrome around his right elbow. CRPS is a condition where the body reacts abnormally to an injury. The pain is much more severe and long lasting than is normally expected from a minor injury. It causes a mix of stinging, stabbing and burning as well as tingling and numbness.