Dizziness and chest tightness during breastfeeding is considered to be related to various factors such as overwork, anemia, cervical spondylosis and so on. 1. overwork, usually if you do not pay attention to the body maintenance, often stay up late and tired, may lead to the brain blood irrigation is insufficient, so there will be breastfeeding dizziness chest tightness symptoms. 2. Anemia, if you don’t pay attention to your personal diet, excessive blood loss during the production process may lead to anemia, so this symptom will appear. 3. Cervical spondylosis, if cervical spondylosis has occurred, the blood circulation in the neck is compressed, which may lead to a slowing down of the blood flow, and therefore symptoms such as breastfeeding dizziness and chest tightness may occur. If there are obvious symptoms appear, it is recommended to actively seek medical examination and treatment.