one of the first engine signals.
2. 
Loss of balance and frequent falls
Coordination becomes more difficult, especially on uneven terrain.
Some describe a feeling of “weak legs” or a hesitant gait.
3. 
Muscle cramps and twitches
Fasciculations are small, involuntary muscle contractions that are visible under the skin (often in the arms or calves).
They can be frequent and bothersome.
4. 
Language difficulties
Some patients notice a weaker voice, slurred speech, or difficulty articulating correctly.
This is a typical sign when the affected area involves the facial or neck
