Since the discourse community itself is intangible, it is easier to imagine discourse communities in terms of the fora in which they operate. The hypothetical journal and email list can each be seen as an example of a forum, or a concrete, local manifestation of the operation of the discourse community.
Daily nausea can be caused by stress. An ulcer in the small intestine may cause chronic nausea. Excessive consumption of caffeine can cause nausea. A person may develop chronic nausea in relation to a peptic ulcer. Indigestion is one of the most common causes of nausea.
Well this thread is kind of old but just for anyone stumbling over it like i did. The first reply didnt answer the question correctly. They wanted to know if dehydration could cause nausea and vomiting not it nausea and vomiting cause dehydration. The answer to both questions are yes. Lack of fluids (especially in warmer environments) will cause symptoms of nausea and vomiting.