Lots of women with endo have chronic pain, but so do other people in the community. There are those with back pain, migraines, trigeminal neuralgia (pain in the face), pain after a bad leg injury or pain from diabetes. Pain specialists believe that chronic pain is a medical condition itself, rather than a symptom of something else. There may have been something (like endo) that started the problem, but overtime, there has also been a change in the way the nerves send pain signals which has made everything worse and kept the pain going. They use special medications, lifestyle changes, physio and psychological support - and they work with your gynaecologist to help you have as little pain as possible.
If you have pain on most days, or have sharp, stabbing or burning pain, and are lucky enough to live near a pain specialist, they are a great idea.