My first major spasms were in my legs, which got me dxd...my legs pulled up into a bent position and I couldn't straighten them. It was very, very painful.

I have fasciculations in my legs constantly; looks like my pregnant belly did when the kids were almost to term
I get spasticity in my shins and calves, sometimes in my hamstrings, and in my back. My legs feel as if the muscles are being ripped from the bone.
I'm on zanaflex; my former neuro had me on baclofen, but it really didn't reduce the spasticity for me.