Migraines and full body numbness

Patient: About 3 weeks ago i got such a bad migraine i broke down and went to the er a week later my left side of my body went completely numb from my hands to legs and my face to tongue to teeth they did cat scan blood work everything all my numbers can back normal and they couldnt find a reason for it since then its happened 4 times its very scary and i dont know whats causing but it happens when i have a migraine headache and ive had one a week that hurt bad im scared to drive because i cant feel if im driving i dont have insurance cant afford it and i dont have money for a dr im clueless to whats going on