<p>Checking in at a tiny 5 foot and a massive 23 stone in weight, broadcast journalist Teena Gates was staring death in the face when a doctor's grim diagnosis shocked her into a decision that would change her life.<br>A little more than a year later she had lost a massive 12 stone (more than half her body weight) and had climbed to Everest base camp and beyond to reach the summit of Kala Pattar Mountain and Island Peak in the Himalaya, topping o...