I've noticed a number of people on this forum mention Foot Drop as a problem, along with the loss of use of legs, fatigue, etc.
Foot Drop is one of end results of Beriberi, which is a neuromuscular and/ or cardiovascular disease, caused by lack of Vitamin B1. In just this one link http://emedicine.medscape.com/article/116930
on Berberi you will see numerous connections to MS symptoms.
Dr Kenner treated MS with Vitamin B1 as the center of his protocol--
Here is link to his protocol
http://www.townsendletter.com/May2003/k ... ol0503.htm