What Causes Chronic Chest Pain, Fatigue, Dizziness And Constipation?

hi. I ve been having sometimes debilitating chronic pain for two years. it started in my chest and gradually moved to about everywhere in my body. I also suffer from severe fatigue,dizzines, severe constipation that doesn t improve with even prescription laxatives, nausea, periods of a few months where I vomit every thing i eat, sensitivit to touch, blurry vision, severe leg cramps, and a weird nerve sensation that jolts down my arms seconds after moving them