Can infected teeth cause ocular(silent migraine... Or sinus infection cause it?
Infections are not triggers for migraines, these headaches, which come in many guises, are thought to be caused by disruption of chemical neurotransmitters in the trigeminal nerve nucleus of the brain stem. The imbalance can cause neurovascular hyperexcitability of the cerebral cortex and resulting symptoms.
Serotonin is one of the main transmitters involved. Mood, foods and hormones are triggers.