In her native Checotah, Okla., the country music star suffered panic attacks in high school, she told WebMD the Magazine, People reported. Christmas shopping "seemed to be my worst nightmare."
That was because "I'm a big personal space person," she said. "You know, if you go to the restroom, you use the stall that's not near anybody. Or if you're in the gym, you go to the treadmill where there's space in between you. And it seemed like in crowded situations like that, people would just completely violate your personal space."