People can feel lightheaded or dizzy for all types of reasons including migraines, ear infections, malnutrition, and drug abuse. However, this unpleasant feeling is also associated with supraventricular tachycardia. Some people not only get dizzy, but they can faint or nearly faint. Also known as syncope, your body might collapse because of stress, prolonged standing, or heat exposure. However, if your heart is beating irregularly or you have a sudden drop in blood pressure, you can pass out. Make sure you see your doctor immediately to evaluate your health.

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