Irritable Bowel Syndrome (IBS) is a functional digestive disease. Its main symptoms are diarrhea and constipation. Some individuals only suffer from one or the other, while others suffer from both at times.
The function of the intestines is dysfunctional in individuals with IBS. In general, the intestines overreact to stimulus. For example, in a person without IBS eating a meal heavy in fats or protein might cause little or no discomfort. Someone with IBS eating a similar meal could result in severe cramping and bloating.
Sometimes pain brought on by IBS's symptoms can cause nausea. Pain levels vary, but there are many sufferers who experience nausea brought on by severe pain.
Pressure put on the stomach by bloating can result in nausea. Bloating is common to all types of IBS. Using an over-the-counter gas-relief product can help reduce bloating, and in turn, nausea.
Going too long without eating or eating too much at one time can also result in nausea. Going for several hours without eating can cause nausea because of the sensitivity of the digestive system. Eating too much at once causes nausea in a similar manner.
Prevention is the best treatment for nausea caused by IBS. Eating small meals frequently throughout the day and using gas-relief products can greatly reduce nausea for some. If nausea is brought on by pain, consulting a doctor for prescription pain relief can help.