Either of both. Ate a chicken sandwich with fries for lunch with a glass of tap water with ice. Stomach felt a little off a few hours later. Went for dinner and had the Ancient Grains bowl with chicken salad, and an Almond Joy smoothie. I woke up at 3:30am with intense abdominal pain, had nausea and loose stool. Was up til 5:30am. Woke up again at 8:30 and stomach was hurting, loose stool led to diarrhea. Went to shower and brush my teeth and gagged on the toothbrush, immediately vomited repeatedly, 4 or 5 times. Now lying in bed feeling weak and some abdominal achiness, but better than before I vomited.