i suffered from migraines monthly from about 9 pr 10 until i began taking blood pressure medication in early 50s. i too used the self-administered shots for mine. tried using cannabis for my migraines. i am truly unsure about my results. sometimes smoking was the last thing i did BEFORE an attack, no correlation/causation there, as my Dr & i never cornered my triggers. unless, undiagnosed high BP was the cause all along. rare in children however. it worked often enough that i kept trying it, lol. never had the injections fail me, but they were last resort as i actually felt WORSE for an hour or so after the shot...