Description Descriptions of how it 'feels' to live with RSD/CRPS have been translated into graphic form in the hope it will help others understand what it's like to exist in our world. Daggers embedded in a blazing leg encased in ice on a world of flames.Hidden beneath the surface of Complex Regional Pain Syndrome (CRPS) Reflex Sympathetic Dystrophy (RSD) If you want to know what it feels like to live with this condition . . . the answer can be found in CRPS / RSD Awareness World of Fire & Ice Graphics. CRPS/RSD is a chronic pain syndrome characterized by severe and relentless pain that affects between 200,000 and 1.2 million Americans & over 5 million worldwide.