Source:http://linkedlifedata.com/resource/umls/id/C0497293
MEDLINEPLUS: <p>When you're dizzy, you may feel lightheaded or lose your balance. If you feel that the room is spinning, you have vertigo.</p> <p>A sudden drop in <a href='http://www.nlm.nih.gov/medlineplus/lowbloodpressure.html'>blood pressure</a> or being dehydrated can make you dizzy. Many people feel lightheaded if they get up too quickly from sitting or lying down.</p><p>Dizziness usually gets better by itself or is easily treated. However, it can be a symptom of other disorders. Medicines may cause dizziness, or problems with your <a href='http://www.nlm.nih.gov/medlineplus/eardisorders.html'>ear</a>. <a href='http://www.nlm.nih.gov/medlineplus/motionsickness.html'>Motion sickness</a> can also make you dizzy. There are many other causes.</p> <p>If you are dizzy often, you should see your health care provider to find the cause.</p>