I know that my symptoms are worse during especially stressful times. If the relationship between your symptoms and your stress levels are as clear-cut as you describe, than perhaps you should direct your energies into meditation, or learning how to control your stress levels. There are many resources out there on the subject of mindfulness meditation and chonic pain. It is very effective.

Also, have you ever directly answered he question of whether running makes you feel better or worse or has no effect? Running does induce a meditative state which you can begin to apply to other times in your life. The main idea of mindfulness is to concentrate on what is actually happening at the moment rather than what you fear might happen. I can recommend some books if you like.