When I woke up in the morning, I suddenly felt dizzy and dizzy. Why was it that I wanted to vomit?

In the morning, I suddenly feel dizzy and want to vomit, which may be caused by insufficient rest time, poor sleep quality and mental stress, or may be caused by local cold, hypertension and malnutrition. In addition, cervical spondylosis oppresses local nerves and also causes dizziness and vomiting symptoms.