If you experience dizziness and nausea in the fifth month of pregnancy, you should first rule out blood pressure and blood sugar problems. If you have high blood pressure, you should take antihypertensive medication in time. If you have low blood pressure or low blood sugar, you need to pay attention to enhance nutrition, eat more nutritious food, eat moderately more milk, eggs, meat, enhance nutrition, enhance physical fitness, improve the phenomenon of low blood pressure and low blood sugar. During this period, if there is too much stress and poor sleep, it is also easy to cause plant nerve dysfunction, which can lead to dizziness and nausea. You should try to keep your mood relaxed, take part in outdoor sports in moderation, rest on time and develop good meal habits to help your health during pregnancy.