Why does anxiety cause me to see flashes of light?

See your doctor. Although anxiety can cause a variety of physical symptoms, flashing lights isn't a common one. It is important to make sure that there isn't a different problem causing the symptoms. High blood pressure, even if worsened by anxiety, needs to be addressed medically and can cause that kind of symptom. Migraines and seizures can do the same. Check with your doctor, it could be more than anxiety.