Rivka might have some balance issues

As we learn earlier in Bereshit, Rivka falls off her camel when she sees Yitzchak. Why does she fall off her camel? She doesn't even know who he is, much less that he is the man who is going to be her husband. A possible reason is that she saw how spiritual and holy he was because he was praying, and she felt insignificant and on a lower level. Perhaps she was also just nervous about meeting the man she was going to marry and walking blindly into the whole situation. Maybe she was overwhelmed, ans she had every right to be. She may have been thinking about the family and the life she left behind. Or perhaps, we are over-examining this whole situation, and Rivka just had a small balance problem. Or then again, she could have been dizzy and nervous becuase...