In a water molecule, the oxygen atom and hydrogen atoms share electrons in covalent bonds, but the sharing is not equal. In the covalent bond between oxygen and hydrogen, the oxygen atom attracts electrons a bit more strongly than the hydrogen atoms.
Giardiasis is an infection of the small intestine causing diarrhea, gas, bloating, nausea and stomach cramps. Inflammatory bowel disease. Inflammatory bowel disease causes swelling and symptoms such as cramping, chronic diarrhea, and bleeding. Viral gastroenteritis. Gastroenteritis (stomach flu) is a viral condition that causes diarrhea and vomiting. Medication reaction or side-effect Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.
Diarrhea is often part of the constellation of symptoms caused by the influenza virus. However, it would be very unusual for you to have the flu if your only symptom is diarrhea, without accompanying fever, cough or muscle aches. Other viral infections causing gastroenteritis can manifest primarily with diarrhea, and some of these infections may linger to a period of about two weeks.