Adenardi:
Do you also have a related bleeding disorder? Fatigue had been a big challenge for me, w EDS 3, but I also had a related disorder--we haven't confirmed but it may be von Willebrand's. Iron levels were way too low and correcting that helped immensely with the fatigue. With lousy collagen, it can be hard to form clots which proves to be a big problem for many women w EDS. So you don't have to have EDS IV to land up w bleeding issues.
If it is not a bleeding related fatigue, I think you will still find that there are many folk out there w EDS who do have fatigue as well as significant unexplained pain.