The question that even neuros are not sure about the answer to

There seems to be a very fine line between RR and SP and can be difficult to know when that transition actually happens. Last year I asked my neuro if I had transitioned to SP, his answer...possibly, maybe but maybe not I guess you could call that being noncommittal

My neuro thought possible SP because my last exacerbation was in 2002 yet and have had this disease a long time. However, after 28 years I have only had 5 exacerbations so they do tend to be quite spaced. I have been considered stable for several years, my MRI showed improvement and I am still able to improve and maintain my mobility. Mobility has always been my main problem with this disease.

I see my neuro next month for my yearly check and I will be curious to know if he still considers me "possible" SP or what

I guess all of this to say "I don't know." Talk to your neuro and see what he thinks.