Nausea is a feeling of discomfort in the stomach, which may or may not lead to vomiting.
Here are ten common causes of nausea:
Motion sickness is caused by air, sea, or road travel. This feeling is due to repeated movements, which causes the eyes and ear to transmit signals to the brain. Now, the brain has difficulty interpreting these messages, resulting in a conflict of the senses and a sick feeling. Symptoms include dizziness, pale skin, headache, nausea, and vomiting. A high percentage of people who experience motion sickness have mild Nausea symptoms, which stops as soon as they get off the car, boat or airplane. A few others experience an intense feeling of nausea, which leads to frequent vomiting.