I'm sorry to hear you are in daily pain, and are taking so much medication. I had some success by receiving accupuncture on a regular basis (from a practitioner who really knew what he was doing). The most success I've had is from being on a restrictive diet, in which I eliminated all major migraine triggers (MSG, nitrates, caffeine, citrus, chocolate, nuts, etc.) from my diet.
Have you previously attempted any alternative therapies? Sending good thoughts your way! Good luck in finding something that works for you, I know how frustrating it can be.