Simon Pearson went to his doctor because he was exhausted. What he came away with was a diagnosis that would shadow the next seven years of his life: polycythemia vera, a rare and incurable blood cancer, compounded by hemochromatosis, a genetic disorder that floods the body with toxic levels of iron. As reported by SWNS, Pearson, a 41-year-old business director from Tamworth, England, was told the fatigue was a symptom of something that could ev…