A 22-year-old female complains of 3 days of watery diarrhea with 7 to 8 stools per day. She is drinking approximately 3 sodas a day because she is trying not to get dehydrated. She has had very little other intake because eating makes me have to go to the bathroom. She denies other symptoms or allergies.

• From the information provided, list your differential diagnoses in the order of most likely to possible but unlikely. Provide rationale for answer 

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