Vertigo and Dizziness can be used interchangeably when describing the sensation of instability or a feeling of lightheadedness. Although the symptoms of vertigo and Dizziness may seem very similar in some ways, the truth is both terms are not totally the same. Dizziness is just a term that describes the sensation of imbalance, confusion, etc. At times, you just find yourself on the verge of losing your stand just because you have stayed so long on the ground.
Also, you can just be looking at some things while standing, and suddenly feel like you want to fall. The two examples are a better explanation of dizziness means. Vertigo, on the other hand, is also a term that describes the sensation of imbalance, lightheadedness, etc. But before this, there is always a spinning or whirling sensation in your head, which will definitely lead to Dizziness. This spinning sensation can also cause disorientation. However, vertigo and Dizziness are most times caused by a sudden reduction in the blood supply to the brain.