Dizziness after smoking may be related to the nicotine or nicotine contained in cigarettes, which can stimulate the brain tissue, or it may be related to the sensitivity to nicotine. Smoking dizziness may also be related to the carbon monoxide content in the cigarette, because carbon monoxide can combine with hemoglobin to cause cerebral ischemia, hypoxia, dizziness, fatigue. Frequent smoking is more harmful to the body, leading to arteriosclerosis or complications of cardiovascular diseases, may appear dizziness, headache, fatigue, dizziness after smoking may also be related to anemia, blood sugar, cervical spine disease. You should go to the hospital to do the relevant examination, for the cause of treatment, smoking is harmful to health, it is best to gradually quit smoking.