In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.

On my way to gym , my left foot caught in a pivot in the pavement . I fell , slamming my right knee into the pavement and jarring my hips and back ... before I hit the ground . I was helped up by several people who saw me fall , and found myself able to stand . After trying to walk a short distance , I realized something was wrong with me physically .
Question: What may have caused something to be wrong with you physically ?
I tripped in the parking lot .