How are you doing now? Have you been to the DR? I have dizziness, tingling ect with my migraines but when they go one for so long like yours has, it would be good to see someone. It sounds like where I have pain also in my neck...Chiropractic helps me, but I would be sure, like Surgi said it isn't something with a disc.
Have you tried another preventative? Topamax didn't help me. Do you have anything like Zomig, Relafin, ect to take when you get a migraine? I have had success with magnesium, and others have used Fever Few (Herb) This is a good explanation of numbness ect http://www.medhelp.org/medical-information/show/26/Numbness-and-tingling
Hope you are better....