I started getting migraines in my early 20s, and for a while they were very disabling. I went through all the usual pain meds, ergots and beta blockers (this was before the triptans) and nothing really worked.
Finally, during a visit to a rheumatology specialist for my lupus, she remarked that people who have severe Raynaud's can have severe vascular migraines that are caused by constriction of blood vessels, and that they were treated differently. She put me on a calcium-channel blocker called Procardia, and I have rarely had a migraine since as long as I am on it. It also controls my Raynaud's.
I did try a triptan when they came out, by the way, and the doctor didn't take into account the fact that I had Raynaud's...I turned blue all over. Luckily I was in a hospital at the time, so they could reverse it, but it scared me to pieces lol.
Have you tried asking in the lupus forum? A lot of people with lupus also have Raynaud's, and they might have other advice for you.
I hope you feel better soon. ~ Lisa