A trip to the doctor revealed she 'd been fighting a pretty bad infection that had been kicking around for awhile from a root canal .
She was prescribed a variety of things , including complete rest for the weeks leading into the race .
A trip to the doctor revealed she 'd been fighting a pretty bad infection that had been kicking around for awhile from a root canal , and she was prescribed a variety of things , including complete rest for the weeks leading into the race .