Vertigo is one more thing to consider. It is the visual symptom as it shows on the skin. Another associated symptom is dizziness and fatigue. They are both the outcomes of the extremely dropped blood pressure. If the heart does not pump blood effectively, the blood supply is stopped or prevented for a while. It leads to the lack of oxygen and breathlessness. As the level of blood decreases, the blood pressure drops as well. That is when a patient may feel rather lightheaded. Some people may faint.