Vomiting and nausea occur with illness or as a result of abrupt motion. Treatment varies with the individual and the circumstances. Sometimes, it is imperative to receive immediate medical attention, especially if allergies are the culprit.

Occurrence of Nausea and Vomiting

These two symptoms are common with many types of disease and even temporary illness. They can happen either separately or together, depending on the cause. Individuals should consult with their doctor to get a proper diagnosis and treatment.

Migraines

Migraines are a chronic condition and last for periods of hours or longer. Vomiting is one of the symptoms, along with nausea and light sensitivity. Medications and staying in a silent, dark room for a time are ways to combat these severe headaches.

Viral Gastroenteritis

This is also termed the "stomach flu." This infection affects the intestines and causes vomiting, diarrhea, cramps in the abdomen and a fever. It is contagious, and can be prevented by keeping your hands clean.

Motion Sickness

Nausea can result from motion sickness while riding in a car, flying or traveling on a ship. The individual will be dizzy and sweat before vomiting. It can be eased by taking medications such as Dramamine and avoiding overeating while traveling.

Anaphylaxis

This occurs when an individual has a severe allergy to a food, medication or other material. It can happen quickly and can cause a rash, vomiting, nausea and a weak pulse. The individual has to be taken to the hospital immediately and given a shot of epinephrine.

Source:

Mayo Clinic: Symptom Checker