Last I checked, peri ventricular lesions, and spinal lesions even in the face of negative spinal tap is enough diagnostic critera for dx.

Is your MD an MS specialist. If not, I would book an appointment, even if only once to see an MS specialist. Alot of neuro type people deal with migraines, strokes, and traumatic brain injuries, and leave the MS stuff to the big boys.

is there a center around?