I Have Chronic Migraines. I Am So Tired Of Them

I have chronic migraines. I am so tired of them and because of having so many of them and being in so much pain I also experience depression. I have been to so many specialists and nothing helps. I take Imitrex once I get a migraine, which makes me sick on my stomach but that is better than the migraine. Any ideas? I am desperate for help with them.