Difference between Nausea and Vomiting

Key difference: Nausea is a feeling of physical unwellness, usually with the desire to vomit. Vomiting is basically preceded by nausea.

Nausea and vomiting both are the terms that seems to be similar to each other. however, they have different meanings.

Wikipedia defines Nausea as, “a sensation of unease and discomfort in the upper stomach with an involuntary urge to vomit.” The word nausea has been derived from the word ‘nausia’, meaning motion sickness. Nausea does not have a specific symptom, but it has many possible causes. Nausea basically is a sickness of the stomach that occurs after having food. It especially happens by a strong dislike/disgust or bad feeling, and that may lead to an impulse to vomit.

Wikipedia defines Vomiting as, “Vomiting (known medically as emesis and informally as throwing up and numerous other terms) is the forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose.” Vomiting is the phenomena that involves the throwing out of the matter present in the human body. It happens when a person does not feel good and pukes. There could be multiple reasons for it. The person who vomits in an aggressive way can be very dangerous.

Comparison between Nausea and Vomiting:

	Nausea	Vomiting
Meaning (Dictionary.com)	Sickness of the stomach, especially when accompanied by a loathing for food and an involuntary impulse to vomit. Extreme disgust; loathing; repugnance.	To eject the contents of the stomach through the mouth; regurgitate; throw up. To belch or spew with force or violence. To eject from the stomach through the mouth; spew. To cast out or eject as if in vomiting; send out forcefully or violently: the volcano vomited flames and molten rock.
Process	Voluntary and involuntary systems are involved in the process	It is a process unique to the gastrointestinal system
Symptoms	Emotional stress Motion sickness Intense pain Overeating Food poisoning Vomiting Infections such as stomach flu Pregnancy	Viral infections Any brain disorder like migraine, motion illness, etc. Pregnancy Excessive of drugs in taken Reactions of drugs in taken Psychologically health disorder
Causes	Pregnancy Gastroenteritis Migraine Appendicitis Labyrinthitis	Pregnancy Gastroenteritis Migraine Appendicitis Labyrinthitis
Unusual causes	An abnormally high blood pressure Low blood pressure	A blockage in your bowel, such as a gallstone Kidney infection Certain medicines, such as antibiotics A kidney stone
Treatment	Drink clear, cold water Eat only light foods Stay away from fried Steer clear of sweets Rest for a while after eating	Stay away from greasy foods Eat small meals and eat them slowly Eat light food like plain bread Maintain a proper nutrition, so find a variety of vegetables and proteins
Examples	Rarely, however, do I find myself suddenly overcome with nausea. She complained to me about some nausea. The nausea and pain was so much that she vomited at the party. Nausea and vomiting, certain ones are more liable to do so. What is the problem with you: Nausea, stomach ache, diarrhea or constipation?	The brain responds by vomiting, to clear the supposed toxin. A woman has choked to death on her own vomit. Vomiting makes one dull and tired. The cause of death was another in a series of episodes of vomiting and diarrhea. Air-sickness is usually a combination of vomiting.