Born to run: Annika Pfitzinger overcomes chronic fatigue

It's been a remarkable comeback for cross country runner Annika Pfitzinger. Next month, the 31-year-old will compete as part of the New Zealand team at the World Cross Country Championships in Belgrade, Serbia. A huge feat considering where she was six years ago - confined to the couch, suffering from crippling headaches and inexplicable exhaustion. The mysterious illness was all the more confusing, given she had just secured a personal best over 10km - 34.33. Months of testing finally led to a diagnosis of chronic fatigue - recovery would be years away, if at all. The daughter of Olympic runners Christine (nee Hughes) and Peter Pfitzinger, Annika says working on her mental health and letting go of her running dreams, was key to her comeback. But the road to recovery is far from linear.