What else besides pregnancy could cause nausea?

There are many possible causes of nausea other than pregnancy. Some of the most common causes include:

* Gastrointestinal infections: Bacteria, viruses, and parasites can all cause nausea and vomiting. The most common culprits are Salmonella, Escherichia coli (E. coli), and norovirus.

* Food poisoning: Eating contaminated food can also lead to nausea and vomiting. Foods that are often associated with food poisoning include undercooked meat, poultry, and eggs; unpasteurized milk and dairy products; and fresh produce that has been contaminated with bacteria.

* Motion sickness: This condition is caused by the inner ear responding to certain types of motion, such as the up-and-down motion of a boat or the side-to-side motion of a car.

* Alcohol use: Drinking too much alcohol can irritate the stomach and digestive tract, leading to nausea and vomiting.

* Drug side effects: Many medications, including chemotherapy drugs, antibiotics, and pain relievers, can cause nausea as a side effect.

* Chronic conditions: Some chronic conditions, such as diabetes, Crohn's disease, and cancer, can also cause nausea and vomiting.

* Anxiety and stress: Psychological factors, such as anxiety and stress, can also trigger nausea.

If you are experiencing nausea and are not sure what the cause is, it is important to see a doctor to rule out any serious underlying medical conditions.