Nausea and vomiting may be accompanied by a variety of other symptoms. The type of symptom experienced often provides clues about the cause of the nausea and vomiting. Symptoms may include:

• Diarrhea. Many cases of nausea and vomiting are accompanied by diarrhea. This may indicate an infection in the gastrointestinal (GI) tract.
  
  
• Abdominal pain. This may be a symptom of an intestinal obstruction or inflammation in the abdomen due to pancreatitis (inflammation or irritation of the pancreas, often caused by gallstones or alcohol abuse).
  
  
• Sudden onset of nausea and vomiting accompanied by fevers, body aches, runny nose and cough. This may also indicate an infection in the GI tract.

The timing of nausea and vomiting may also provide clues about its cause. If it occurs shortly after a meal, it may indicate a peptic ulcer or may be related to a mental disorder. If it occurs between one and eight hours after a meal, it may indicate food poisoning.