What are the symptoms of this SMS? I mean do you have more than the spasms and stiffening? My husband walks staggery, even falls at times. I can not find much info on this disease. Husband has been sick for over 7 years, and we have been waiting patiently for a dx of some kind. Still unsure if this is our dx, but the doctor is leaning this way, cause his tests far as testing for MS comes back normal. Email me at Bc5423@aol.com.