It is extremely hard to diagnose MS. It is near impossible without certain tests. Most people get an MRI, lumbar puncture, evoked potentials, a complete neuro exam. Even with those, it can take years.
I have experienced chronic vertigo for over two years. It can be very debiliating. I hope you keep at your quest for answers and get some relief too. I can't say if you have MS obviously. You definitely have some awful stuff going on. Good luck and let us know how you are doing.
Gretchen co-moderator MS board diagnosed with MS July 2006