What Does It Mean When You Smell an Overwhelming Scent of Metal Before a Migraine?
1. Introduction Smelling a prominent scent of metal before a migraine is a type of olfactory hallucination known clinically as phantosmia, which serves as a sensory aura preceding the pain phase. This phenomenon indicates that a wave of altered electrical activity is sweeping across the olfactory cortex of the brain. When this neurological wave stimulates … Read more