Nausea is a feeling of queasiness and that you might vomit. Nausea that comes and goes or nausea without vomiting can be caused by anything from food poisoning or motion sickness to nerves or ...

What happens when just the thought of being sick makes you want to throw up... but you have a deep-seated phobia of anything and everything to do with vomit, both yours and other people's? According ...