I was Dx'd in 2001, and although my MRI picture hasn't changed all that much over the years (and I have had LOTS of MRI's - at least once a year) I do notice a deterioration.
I started out bad - then I got a lot better over time, but in the last year or so, I have been falling more, more tired, more uncoordinated, less 'graceful' (read this as frequently walking like a circus clown) more brain-foggy, more 'tingly' and numb, and more nerve-based pain.
I don't know - I have wondered about the secondary progressive thing - but when that happens, don't you get LOTS more lesions? I don't appear to have more - although there is quite a large spinal one that we didn't notice before.
After 11 years, it is only reasonable to expect that things would start to happen - after all, I am out of warranty now. Lets just hope the goods were from a quality supplier in the first place
Cheers
Lyn