Common Symptoms of MS continued...
Fatigue: About 8 in 10 people feel very tired. It often comes on in the afternoon and causes weak muscles, slowed thinking, or sleepiness. It's usually not related to the amount of work you do. Some people with MS say they can feel tired even after a good night's sleep.
Muscle spasms: They usually affect the leg muscles. For about 40% of people they are an early symptom of MS. In progressive MS, muscle spasms affect about 6 in 10 people. You might feel mild stiffness or strong, painful muscle spasms.
Speech problems: Sometimes MS can cause people to pause a long time in between words and have slurred or nasal speech. Some people also develop swallowing problems in more advanced stages of MS.
Thinking problems: About half of people with MS have trouble concentrating that comes and goes. For most, this means slowed thinking, poor attention, or fuzzy memory. Rarely, people can have severe problems that make it hard to do daily tasks. MS usually does not change your intellect and ability to read and understand conversation.
Tremors: About half of people with MS have tremors. They can be minor shakes or make it hard to do everyday activities.
Vision problems: Problems with your eyes tend to be one of the first symptoms. They usually affect only one eye and go away on their own. Your sight may be blurry, gray, or have a dark spot in the center. You may suddenly have eye pain and temporary vision loss.
What Causes MS Symptoms?
Doctors divide the symptoms into three groups: primary, secondary, and tertiary.
Primary symptoms come from damage to the protective sheath (myelin) around the nerves in your spine or brain. The damage causes scarring, which makes it harder for signals to travel between the brain and the body.