Neck and limb muscles. myasthenia gravis also can cause weakness in the neck, arms and legs. weakness in the legs can affect how you walk. weak neck muscles make it hard to hold up the head. when to see a doctor. talk to your health care provider if you have problems: breathing. seeing. swallowing. chewing. walking. using your arms or hands. When the muscles tire of taking on all the extra work, trying to support the head without their own proper support structure, this can cause the neck muscles to then weaken and shrink. as the atrophy advances, the upper neck muscles can no longer stabilize and support the head. hence, you may experience that “heavy head” feeling, or get.
Myasthenia gravis (mg) weakens and fatigues the body’s voluntary muscles (those we can move at will). it does not damage the musculature of the heart or the gastrointestinal tract. mg can affect any of the body’s voluntary muscles, but it tends to affect the muscles that control movement of the eyes and eyelids, causing ocular weakness. consequently, a partial paralysis of eye movements. When surrounding tissues press on nerve roots, it can cause pain, numbness and tingling in different areas of your body. this is called radiculopathy. compression of motor nerve roots causes muscle weakness. there are different types of radiculopathies based on where the pinched nerve is along your spine: neck (cervical radiculopathy). Muscle weakness caused by myasthenia gravis can affect multiple parts of the body at the same time. the most common symptoms people with myasthenia gravis experience are: neck muscle weakness. Head feels heavy. neck gets stuck, or locks, with movement. better in unloaded position such as lying down. catching, clicking, clunking, and popping sensation. past history of neck dysfunction or trauma. trivial movements provoke symptoms. muscles feel tight or stiff. unwillingness, apprehension, or fear of movement.
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