migraine
"The injectable version works well for my infrequent (every 2-3) months migraines. It stops them dead in their tracks. The only downside is it leaves me feeling a little out of, as if I'd better not operate any heavy machinery.
I also err by not taking it as soon as the pain hits. That's because I hate jabbing myself with a needle. Bizarrely, I also get migraines with aura but no pain. The aura is only visible in my left eye, and looks like fluttering black fringe. So weird. The first time it happened, I was sure I was having a brain bleed. When it went away without my dying or having a stroke, I figured it was just my brain chemistry throwing a party, one with black streamers."