Dizziness after smoking may be related to the nicotine or nicotine contained in the cigarette, which can stimulate brain tissue, or to sensitivity to nicotine. Dizziness from smoking may also be related to the presence of carbon monoxide in cigarettes, which can combine with hemoglobin to cause cerebral ischemia and hypoxia, resulting in dizziness and weakness. Frequent smoking is more harmful to the body, leading to atherosclerosis or complications of cardiovascular disease, there may be dizziness, headache, weakness, 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.