For chronic pain management, MayoClinic offers expert advice. See link below.
If you suffer from chronic headaches, consider keeping a headache diary to avoid making faulty cause/effect assumptions:
A diary may help you determine what triggers your tension-type headaches. Note when your headaches start, what you were doing at the time, how long they last and what, if anything, provides relief. With the help of a headache diary, you may begin to notice patterns in your daily life that may contribute to your tension-type headaches. You may also note the benefits of healthy lifestyle changes