Recently, I experienced the worst headache I’ve ever had. The pain was so severe that I threw up. But oddly, when I vomited, the pain from the headache subsided almost immediately. Why would this be, and is it cause for concern?
More accurately called gastroenteritis, contagious stomach illness is most often caused by two viruses, rotavirus or norovirus.
Smart habits can help people avoid getting and passing on the illness.