Dizziness, Faint, Flightiness, Wandering, Delirium. Root Cause of Disease Lightheadedness is the one of the type of Dizziness. Lightheadedness is feeling as if you might faint. Your body may feel heavy while your head feels as if it is not getting enough blood. Another way to describe lightheadedness is as a “reeling sensation.” Lightheadedness may…