Hi SW - Welcome to our group.
We are an MS specific group, and non of us are doctors. We are just folks living with MS, or on the MS diagnostic path.
What you describe does not sound like MS to me. I have not seen the bilateral tremors your describe given as a primary presenting symptom of MS. Also, MS symptoms tend to stick around for days, weeks even months.
MedHelp has a spine related forum and you may get better information there. Here is a link.
http://www.medhelp.org/forums/Spinal-Cord-Conditions-Disorders/show/1227
Kyle