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.
Best Answer: Anemia has quite a few different causes, and some of the causes can cause vomiting. Generally, iron deficiency anemia does not cause nausea. Other symptoms are associated with specific forms of anemia. Hunger for strange substances such as paper, ice, or dirt (a condition called pica).