Principal Julie Sterner's injury impaired her ability to read and multitask after falling in a bounce house. She said therapy helped her become herself again.

York, PA - Last summer, Julie Sterner broke down in the ice-cream aisle at a grocery store. She couldn't remember what she wanted to buy. The bright lights, people and choices were too much for her mind to handle. She felt overwhelmed and panicked.

"I didn't know how to get out," Sterner said.

In April, the 33-year-old fell in an inflatable bounce house during a Dover Area Senior High School event.

Sterner -- principal at Dover Intermediate School -- hooked up to an elastic cord to race a student. She lay on the inflated floor after she slipped and the band snapped her body backward to the ground. She felt groggy as pain circled her head. She thought she was OK, so she went home and slept. She awoke the next day with a headache and felt fatigued.