Kristin Angelov was 26 when the exhaustion hit. Getting up in the morning was a superhuman effort, a struggle compounded by her suddenly dismal mood.
"I would be in meetings at work and feel so tired and dizzy, like I was going to pass out," she says. And though the once-energetic writer stuck to a healthy diet, she packed on five pounds in two weeks. What's more, whenever she stepped out into the cold, her fingernails and toes turned a faint shade of blue. She dragged herself to her...Full Story