The dizziness and nausea after exercise may be due to the following reasons: 1. Consider that it may be caused by elevated blood pressure after exercise, high blood pressure will lead to the expansion of blood vessels in the head, increased cerebral blood flow, the patient will have dizziness, head swelling, nausea symptoms. 2. The patient’s symptoms can be completely relieved after eating. 3, the patient’s dizziness and nausea after strenuous exercise may be related to cervical spondylosis. If the patient has a past history of cervical spondylosis, strenuous exercise may lead to compression of the vertebral artery, causing insufficient blood supply to the brain. Patients may also experience dizziness and nausea, which may be accompanied by stiffness and discomfort in the neck muscles.