if the level of iron in your
blood is low, you may be anemic, which causes fatigue. if the
glucose levels in your
blood are off it can cause frequent need to urinate and fatigue, not to scare you, but the only reason they caught my dad's diabetes is that he was needing to pee all the time and was tired all the time, my mom thought it might be prostate related with him because of his age, and had him go to the doctor.