Nausea Health Dictionary

Sensation of sickness with tendency to vomit.

Common causes: stomach upset from food indiscretion, emotional episode. May precede active vomiting in sick headache, migraine or liver disease.

For simple nausea: a cup of German Chamomile, Peppermint, Ginger, Black Horehound or Balm tea, or suck segment of crystalised Ginger, or Liquorice. For nausea of pregnancy: see: MORNING SICKNESS. Entry: VOMITING also refers.

If nausea persists for a number of days a practitioner should be consulted. 

The sensation of needing to vomit.

Although nausea may occur without vomiting, the causes are the same.

The sensation that VOMITING is about to occur; however, nausea does not always lead to vomiting.

n. the feeling that one is about to vomit, as experienced in seasickness and in morning sickness of early pregnancy. Actual vomiting often occurs subsequently.