Dizziness is a term that describes a variety of symptoms such as faintness, wooziness, weakness, or unsteadiness. Vertigo is a type of dizziness that gives the impression that you or your surroundings are spinning or moving. Dizzy episodes or continuous dizziness can have a big impact on your life. It could be accompanied with nausea, or it could be so abrupt and strong that you have to sit or lie down. The incident could last seconds or days, and it could happen again.