Pain has the tendency to become less severe the longer the RSD/CRPS is present.Other symptoms of RSD/CRPS, not always mentioned, caused by the malfunction of the sympathetic nervous system: allergies/asthma, absence or abnormal menstrual cycle, chest pain, cardiac complications, chronic fatigue, autoimmune disorders such as arthritis and Crohn's disease, IBS ( digestive problems-acid reflux, const