Since I couldn't find a good online resource about this, I would also like to briefly discuss the difference between triggers and causes. I got this information from talking a doctor at Mayo Clinic, as well as my local headache specialist. They said that people with chronic pain are predisposed to feel pain, and often react to things that would not cause pain in other people. In other words, triggers don't cause the chronic pain disorder (usually), but it can still be important to identify and avoid them because it can help decrease the frequency of your worse pain attacks.
1. Identifying Pain Triggers
This website is discussing migraine triggers, but this advice is easily transferable for any pain disorder. The article explains the correlation between triggers and pain attacks, and offers some advice about how to track your activities, food, etc. with a pain diary to watch for any possible triggers that might be making things worse.
2. Some Common Pain Triggers