If you are not in an active or "flare" phase of the disease, most Spinal taps are negative. We throw those Obands when we are eating our own mylin.

MS has been dxd many times based on symptoms (sx) alone, with and without MRI studies. The contrast will only show "active" lesions or will cause active lesions to light up.

MS is a frustrating dx for so many. You can be left on limbo island for years while chasing that rabbit.

I would find an MS center for a more reliable dx.