This morning I ended up being so nervous that I threw up . Twice . Wow this totally makes logical sense Jamie . I should n't have been THAT nervous , I do n't even know why I was . So I went through my first periods without a problem .
According to the above context, choose the best option to answer the following question.
Question: Why may the narrator be nervous that she throws up ?
Options:
- She is feeling stress from home .
 - She is feeling stress from work .
 - School is causing her stress .
 - None of the above choices .


School is causing her stress .