Hi! Yes, it’s a thing! That’s what I have. I’d say Smouldering (slow burn) is a more accurate term, indicative of little or micro accrued changes/no obvious relapse over an extended period of time. For me, almost 14 years on Copaxone plus who knows how many years I had it before symptoms were sufficient to seek a diagnosis. I’m a bit surprised they’d use the term at first diagnosis though, when they don’t have a benchmark position to assess progression from? I’m a big proponent for DMTs. Hope your disease path is glacially slow!