What abortive do you use with hemiplegic migraine?

I have always suffered from severe migraine. Just recently I have been diagnosed with Hemiplegic Migraine. For abortive treatment I have tried almost everything to no avail (NSAIDS, antiemetics, various steroids etc.) Triptans and ergotamines cannot be taken with hemiplegic migraine because of high risk of stroke. The only thing that takes the pain away is narcotics but no doctor will prescribe them unless I’ve been suffering for weeks and can barely move. Since being diagnosed four months ago I have went from 145lbs to 99lbs because I’m so sick. Any advice would be appreciated

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