Just wanted to add that even with a bunch of lesions showing up on MRI, symptoms do not necessarily reflect that.
The MS neuro that I have now received my brain MRI discs & spinal X-rays before my first consult with him, and he said that he was "...pleased, although surprised to see me walking into his office."

That was over two years ago and since then I have picked up a couple of new lesions in the brain and one of the prolapsed discs has collapsed further. There are 6 disc prolapses in my spine along with several bulges; secondary to falling a lot.

Yet, I am still ambulatory, and can walk well enough without a cane sometimes; although I generally use one, mostly for balance and to offset spasticity.

If your MRI confirms lesions, it may help provide a likely diagnosis, but it is not necessarily an indicator of your symptoms .
I hope that you get some answers and that you have a well educated and understanding neuro.

With love, Erika