Gosh, there are lots. MS symptoms vary so much between people. I know Lyme Disease is very similar. So is Devics.
I hope Dejibo will come on soon.....she is the best at explaining all this. Here is a link to the MS forum here.
http://neurotalk.psychcentral.com/forum17.html Just reading all the different threads is a big help. Sort of familiarizes you with the different aspects of MS and how it affects each of us differently.