Nausea is the urge to vomit It can be brought by many causes including, systemic illnesses, such as influenza, medications, pain, and inner ear disease
Nausea is the condition of feeling sick and the feeling that you are going to vomit. I was overcome with a feeling of nausea. the feeling that you have when you think you are going to vomit (=bring food up from your stomach through your mouth) = sick feeling/wave of nausea (nausia , from nautes; NAUTICAL). Discomfort in the pit of the stomach associated with disgust for food and a feeling that vomiting will follow, as it often does. Nausea results from irritation of nerve endings in the stomach or duodenum, which stimulate brain centres that control nausea and vomiting. Nausea can be a symptom of minor or serious disorders. Common causes include indigestion (from eating too fast or from stress around mealtime), food poisoning, motion sickness, and pregnancy (morning sickness). Nausea may also arise from any cause of abnormal lack of appetite (e.g., shock, pain, influenza, badly fitting dentures, liver or kidney disease). Simple nausea often is relieved by vomiting