My MS out of full blown relapse is exactly as you describe: Migraine/head pains.

I did have 2 hallmark symptoms during relapse that satisfied my diagnosis: L'Hermittes Sign and girdle-banding (sensory MS symptoms).

I went years (migraines began at childhood) thinking I was just suffering really bad migraines and I had crappy luck to be getting them... but them the inflammation process of MS just took over, and that's when all the other symptoms (though for the most part, sensory) crept up on me and got me into a doc's (several, what a rotten experience going through so many to get answers).

I hope it's not MS and you do get answers and relief.