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Dizziness is generally relieved, not exacerbated, by lying down. However, if you have a condition called benign paroxysmal positional vertigo, you are going to battle dizziness while lying in bed. (BananaStock/BananaStock/Getty Images).
Mild vertigo occurs occasionally for a brief time and goes away on its own. Nausea, but not vomiting, also may be present. Moderate vertigo requires that you lie down and lie still (no head motion) to stop the feeling of movement. Nausea is present and you may vomit, but you are able to keep fluids down. Severe vertigo occurs when the feeling of movement is continuous even when lying down.