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Hello this is Dr. Stan and I will assist you with your question today. I am board certified and I have 40 years of patient experience. I am happy to help you. I'm sorry to hear that you have this condition. Hemiplegic Migraine usually runs in families, so one of your parents or grandparents most likely has/had the same problem. The good news is that it is treatable. There is usually an aura before you develop the headaches, nausea light sensitivity and in your case the muscle weakness that resembles a stroke.
You should have genetic testing to see if you have a defective gene that contributes to this disease. If you do, then it can be passed on to your children. The genes in question are:
CACNA1A; ATP1A2; SCN1A
If you don't have a defect in any of the above genes, then you probably have what is called "Sporadic Hemiplegic Migraines." This disorder is not familial and you don't have to worry about passing it to your children.
The treatment consists of anticonvulsants, calcium channel blockers and triptans which should be discussed with your doctor to determine the best treatment for you.
I am available to answer any additional questions you may have. Thank you for allowing me to provide assistance. I hope your medical problem(s) are resolved soon and you feel better. If you find the information I provided helpful, please rate me with 5-Stars. Thank you