I have learned that sugar is a big contributor to how I feel everyday. An autoimmune disorder can cause me to feel fatigued and sometimes worn out. Sugar can add to my feeling of fatigue. I have learned that I need to cut out anything that is going to contribute to that feeling. My diet is the best place to start.
Stress can cause flares or exacerbations for people with MS and other autoimmune disorders. Worrying about everything doesn't do anyone any good. Think about the last time you worried over something that was happening in your life. When you look back did you accomplish anything during the time you worried and were anxious? Probably not.