However, there are some conditions that require medical attention, so if your nausea persists for more than 24 hours, see your doctor to receive a diagnosis.
Pregnancy
Morning sickness, also known as nausea gravidarum, is a common symptom of pregnancy that affects over half of all pregnant women. This type of stomach pain is usually not something to be worried about since it is an expected and normal part of most pregnancies. However, talk to you doctor if the nausea and/or vomiting becomes too much to handle, since there are some medications your doctor might be able to recommend.
Inner Ear Conditions
Problems with your inner-ear can potentially cause nausea and vertigo, which is the sensation that things are spinning around you. The most common example is motion sickness, which can include air sickness, car sickness, sea sickness, train sickness, etc.
Other inner-ear related conditions that can lead to nausea include labyrinthitis, which is an ear infection caused by a virus that affects your balance, and benign positional vertigo, which is a common cause of vertigo.
Brain or Spinal Fluid Conditions
Any disease or condition that is related to brain or spinal fluid can lead to nausea as a symptom. These include migraines, head trauma, stroke, meningitis, or brain tumors.
Cancer Treatments
Nausea and vomiting can be serious side effects of certain cancer treatments, such as chemotherapy and radiation. Excessive vomiting can lead to many other problems, such as loss of appetite, torn esophagus, dehydration, malnutrition, broken bones, and reopening of surgical incisions. Therefore, anti-nausea medications are typically given to patients in conjunction with cancer therapies in order to prevent these problems from occurring.
Psychological Conditions
Research has shown that nausea can be caused by something as simple as seeing someone else vomit, or witnessing something difficult to watch, such as a car crash or a dissection. Additionally, nausea is a common side effect of anxiety and depression, as well as other mental illnesses such as anorexia or bulimia. Fortunately, if nausea is a side effect of a mental disorder, then having the disorder diagnosed and treated will likely reduce nausea as a symptom as well.
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