Shocks occur in migraine (and
other neurological disorders as well). Gabapentin
induced a, loud, electrical buzzing noise in my head upon awaking the first week.
My hearing is very poor in my right (migraneous) ear. Once, when leaving a large, crowded restaurant, something different happened: I could focus my hearing as clearly as I could my sight: I could focus on a table 100 feet away and hear only their conversation, blocking out voices elsewhere as soft, 'white noise'.