And this is straightforward if somewhat subjective evaluation:
You have moved from RR to SP when:
> You stop having clear relapses followed by complete or near remission.
> And your symptoms are more consistent, like a plateau, without clear remissions.
> Your symptoms may gradually get worse over time without clear remissions.
> You would still have "good" and "not so good" days.
I have Secondary Progressive ms. My ms was diagnosed at this stage. I don't know what a "relapse" or a "remission" feels like. I have worked very hard to keep my symptoms from getting worse. And for the most part, they haven't. And in some ways, due to physical therapy, etc., my balance, agility, flexibility are better. Changing medications and managing stress have improved my cognitive problems. I've become a poster child for self-empowerment!
Secondary progressive has nothing to due with primary progressive. Most rr eventually becomes less inflamatory and settles into sp. More consistent, plateau like symptoms that stabilize somewhat.
No more sleepless nights!! They'll only make you feel like crap!