Given the task definition and input, reply with output. In this task, you will be given a short story. One sentence from the story is chosen. Consider the likely emotions of the participants in the sentence and those affected by it. Is any of these emotions caused by the sentence? You should write your answer in the form " A >Causes> B". Try to use phrases and sentences from the story to compose your answer when possible. For the sentence describing the result, you must use the verb feel(s).

story: When I was little I used to chew my fingernails as a habit. My mom told me if I continued doing this it would make me really fat. Her plan worked, as my fear of getting huge stopped my nasty habit. Well, one day we saw our neighbor in the store, being quite pregnant. I pointed at her belly, saying I knew what she had been doing!
 selected sentence: When I was little I used to chew my fingernails as a habit.

I chew my fingernails as a habit >Causes> My mom feel(s) worried