Mocha, Oatmeal: Severe Reaction - Starbucks,

I ordered a mocha and drank it. About an hour later (I was studying there) I bought the Hearty Blueberry oatmeal and a banana nut bread. Within 30 min, severe stomach cramps began and I've had repeated bouts of nausea, vomiting, and diarrhea for 14 hours now. | Symptoms: Diarrhea, Nausea, Vomiting, Cramps