People who suspect MS should get blood tests done. Check iron, specifically b12. Many things can mimic MS. Special diets and drugs should be looked at too. Family history of illness? Thyroid problems?? Migraine headaches?? (MS is more likely in Nor. Swed or Danish people, particularly Scottish; if you lived with a sibling most of your live, since age 1 or 2-it dramatically decreases risk of MS-almost 90% less likely; also if you spent time outdoors or in the sun before age 20, less risk also). (Both sibling and UV light give your immune system a workout, so it won't attack you)
Newest MRI test (highly detailed) can definitively tell if you have MS-no more guessing, so I'm told.