For myself and those who read this blog, I've tried to answer what ms is. It is a difficult disease to understand to be sure.
From what I have read, MS is MS. It is all the same disease. There are just different stages.
I have RRMS. Relapsing-Remitting MS. It is characterized by occasional relapses, followed by periods of full or partial recovery. During these times the disease seems to be in remission. Though they call it remission, the disease is still resident just not visibly active.
One of the books I have states that 42 % of people with MS have this type.
This book* and others**, list these stages. Secondary-Progressive MS, Primary-Progress MS, and Progressive-Relapsing MS, Active MS, and Benign MS.
Even though MS can be classified in different stages by neurologists, everyone is different. We may have symptoms in common, but MS will be as individual as each of us.
Thanks for your comment. I am truly sorry for your young friend's trouble. Your prayers for this young man's well being are precious.
* "The First Year Multiple Sclerosis" by Margaret Blackstone 2007
relapse: A period when symptoms of MS that you've had in the past recur to an aggravated degree and for a longer period of time. Relapses are sometimes referred to as incidents, attack, or episodes.
remission: A period when symptoms lessen in severity or disappear altogether.
** "Managing the Symptoms of Multiple Sclerosis" by Randall T. Schapiro, M.D. 2003