The symptoms, intensity and duration of an initial MS attack can vary dramatically.  Most commonly, the first attack will occur between the ages of 20 and 40 and last three to ten weeks.  The National Institute of Neurological Disorders and Stroke estimates that there are 200 new cases diagnosed every week.  Because the initial symptoms of MS are so similar to problems causes by other conditions or ailments, initial diagnosis is difficult and the presence of these symptoms should not be regarded as confirmation of the disease.  Schedule an examination by a physician if you are experience any of these symptoms.