Vertigo can occur for a variety of reasons. Among the triggers are so-called motion sickness, low or high blood pressure, arteriosclerosis or disorders of the inner ear.
Make sure that you get the cause evaluated and treated!
If you are prone to bouts of dizziness, ensure a balanced life-style:
Ensure you get enough sleep, regular and healthy meals, and plenty of exercise in the open air. Don't involve yourself in excessive nervous tension and help blood to flow to your brain by doing relaxation exercises and loosening up your neck muscles.