Severe cases of MS can result in loss of vision and partial or complete paralysis. These may include pain, extreme fatigue, and mental changes such as mood swings, forgetfulness, and confusion. Symptoms may appear in any combination, may come and go, and may vary from mild to severe. No one really knows, but you and your doctor can and should talk over your particular situation. MS not only varies widely from person to person, but also it varies in the same person from time to time.
Many people go through periods of exacerbation.
These are acute attacks, also called relapses, during which new symptoms appear or existing symptoms become more severe. Exacerbations are usually followed by remissions which may bring you back to your pre-relapse level or may leave you with some remaining disability. This form of MS is usually called relapsing-remitting MS . Some people have few or no severe attacks but instead experience steady worsening of symptoms and disability over time. MS may stabilize at any time, regardless of pattern.