Jenny Fletcher should have been at the top of her game. In the fall of 2012 the triathlete and former model had scored her first victory in a half-Ironman, just three years after turning pro. But seven months later, in April 2013, she found herself struggling to cross the finish line at an all-woman half-marathon in New York City. "After the race I was nauseous and had to sit down," Jenny, 37, says. "I ended up back in my hotel room, sleeping all day."
Things got worse when she went home to Los Angeles: Jenny awoke on the night of her return with a stabbing pain in her rib cage. Out cycling a few days later, her breathing was so labored that she lagged behind her training partners. And after a tough pool workout, she curled up on her couch with a massive headache, in tears, barely able to move. What's wrong with me? she wondered. Still, she convinced herself that she was just tired or stressed out. "I got off my couch and did a hard bike ride," Jenny recalls.Read More »from Outrun Danger: Why Fit Women Get Blood Clots