If you are suffering from a lasting pain in your arm or leg, especially after an injury, stroke, or a heart attack, then you have Reflex sympathetic dystrophy syndrome (RSD). The pain is usually more severe than the original injury. This pain is caused by dysregulation of your sympathetic nervous system.
Our sympathetic nervous system controls blood flow movement, and it regulates heart rate and blood pressure. When we get injured, our sympathetic nervous system sometimes gets disrupted. Later, when the injury is healed, pain may persist. When you have RSD, your sympathetic nervous system sends out mixed signals from the site of injury and to the brain. This can cause you a lot of pain at your injury site.
For more information, consult Dr. Stanley O Ikezi, an experienced Double Board Certified Pain Management Specialist in New York City.