I agree, dont read too much about MS and the other possible diseases while you're getting a diagnosis. It'll scare the heebie jeebies out of you and probably make you feel worse than you actually do.

Try to relax (easier said than done, I know) and hope that you find an answer soon. Once you get diagnosed, then you can start researching and learn about whatever it is that you have. Hopefully it's something easily treated, like a vitamin deficiency and not MS. MS is too annoying of a disease and hopefully you dont have it.