Ate lunch at 1230. Order a grassfed burger with a side of Mac and cheese. Burger had cheesetomatolettuce and mustard. Shared a mini molten cake with co workers. Stomach pain didn't start till 6pm, where I had diarrhea and nausea. Vomited twice and diarrhea did not stop. Ended up having diarrhea 15 times and vomited 4 more times. Blood pressure dropped from being so dehydrated and went to the ER to receive IV fluids and medication.