People experience endometriosis pain differently, but the most common symptom of the disease is pelvic pain. How People With Endometriosis Experience Pain The founders of this month want to improve the understanding of pain among healthcare professionals, businesses, legislators, the general public, and individuals or families who suffer from pain. The movement toward spreading mass awareness about pain started in 2001 by the American Chronic Pain Association. Understanding pain and its underlying causes lead us to be able to alleviate suffering. Almost 100 million Americans suffer from chronic pain, lasting for six or more months. Pain impacts the daily lives of so many people. By Charlotte Myers September is Pain Awareness Month