Aside from pregnancy, persistent nausea may occur due to several causes including motion sickness, indigestion, viruses, emotional stress, food poisoning and exposure to chemical toxins, states Healthline. In addition, an individual suffering from gallbladder disease is also more likely to experience nausea.
The major primary causes of nausea are strong pain, generally resulting from an injury or illness, and the first trimester of pregnancy, explains Healthline. Although common among pregnant women, nausea also occurs in people who are not pregnant. Usually, pregnancy-induced nausea disappears by the second or third trimester.
Most often, nausea occurs alongside vomiting, but the two may also occur separately, according to Healthline. Causes of nausea and/or vomiting may be physical or physiological. Certain kinds of lifestyles may increase chances of experiencing of nausea and vomiting. For instance, high consumption of alcohol may damage the lining of the gut or react with stomach acid, leading to nausea and vomiting. Eating disorders such as adjusting eating habits may also cause nausea and vomiting. Similarly, individuals suffering from anorexia nervosa may experience nausea due to starvation and too much stomach acid.
Nausea and vomiting may be caused by serious conditions such as brain tumor, meningitis, concussion and migraine headaches, states Healthline. Most cases of vomiting and nausea usually disappear within six to 24 hours. In case the condition persists for more than a week, one is advised to seek the doctor’s attention.