Nausea is the very unpleasant feeling of being about to vomit. Vomiting is the expulsion of the contents of the stomach. It's associated with a feeling of nausea and strong contractions of the abdominal muscles. Vomiting is different from regurgitation, in which one spits up stomach contents into the esophagus without feeling sick and without strong muscle contractions.
Chronic constipation is often cured by natural remedies: A diet with natural fiber from fruits and vegetables, at least eight cups of water a day, and exercise -- plus maybe an occasional laxative from the drug store. But if natural remedies and over-the-counter laxatives such as Metamucil, Citrucel, Colace, and Milk of Magnesia don't help, it may be time to ask your doctor about prescription drugs.
Here are prescription drugs used for the treatment of chronic constipation:
Vomiting -- especially if it comes with diarrhea -- can cause dangerous dehydration. This is more likely to happen to children. When caring for a sick child, be alert to symptoms that mean the child needs water: dry lips and mouth, sunken eyes, rapid pulse, rapid breathing, and, in babies, a sunken look to the soft spot on the top of the head and no wet diapers.
Sometimes the cause of nausea and vomiting is psychological. This doesn't mean the symptoms aren't real. A qualified clinical psychologist or psychiatrist can help. People who often make themselves vomit may have an eating disorder. This can be a life-threatening condition. If you eat a lot and then make yourself vomit, you need professional help.