Germs that can make you sick can be found in raw dough. Flour may not appear to be a raw food, yet it is. This indicates it hasn't been treated to destroy organisms that cause food illness, such as Escherichia coli (E. coli). When you eat foods that have been exposed to the stomach acid of anyone who has eaten before you, you run the risk of being infected with bacteria such as E. coli. Foods that are most likely to cause problems for those who are allergic or sensitive to wheat include bread, cakes, and pastries. Those who are allergic to wheat may experience symptoms such as diarrhea, abdominal pain, and vomiting after eating products that contain this ingredient. Those who are more sensitive to wheat may experience symptoms such as headache, fatigue, and muscle aches after eating these products. Anyone who experiences any of these symptoms after eating products containing flour should contact their doctor so that they can be diagnosed with a food allergy/intolerance. Food poisoning results from eating contaminated food. Germs can be found in water, soil, animals, people, and their feces. When you eat foods that have been exposed to any of these sources, you run the risk of being infected with bacteria that can make you sick. These bacteria produce toxins that can damage your intestinal tract if you're not immune-competent.