Not all people with MS have major problems with their muscles right at the beginning. Doctors are discovering that many start out with concentration and memory problems first and then move on to more physical ones. Others have more physical problems and less cognitive problems.
If you asked me to pick which one I think is worse; mental or physical, I probably would say mental because it is so hard to read and understand anything on curezone or any other self-help site to get the help you need when your brain is tired, fuzzy and just won't work. I guess you can say I was a real "acid head".