Cool Why Do I Feel Light Headed References. If you're feeling dizzy and nauseated, there's a host of possible causes, including illness, pregnancy, motion sickness, and more. Web lightheadedness is when you feel dizzy and like you might faint.
Web generally, see your doctor if you experience any recurrent, sudden, severe, or prolonged and unexplained dizziness or vertigo. It can result from something as simple as motion sickness — the queasy feeling that you get on hairpin roads and roller coasters. If you think you might fall, sit or lie down to avoid being injured.
