"Complex regional pain syndrome CRPS is a condition that causes pain and other symptoms. Scientists believe abnormal nerve functioning causes an overreaction to pain signals that the nervous system can’t shut off. Although there is no cure, treatments are aimed at decreasing symptoms, restoring limb function and maintaining your quality of life."
Complex Regional Pain Syndrome (CRPS): Symptoms & Treatments (clevelandclinic.org)
I all so talk about my experience with RSD/CRPS .