How can find out if have lou gehrig's disease?

ALS?: Amyotrophic lateral sclerosis is characterized by stiff muscles, muscle twitching, and gradually worsening weakness due to muscles decreasing in size. The cause is not known in 90% to 95% of the time and 5–10% of cases are inherited from a person's parents. Diagnosis of ALS is primarily based on the symptoms and signs and an EMG to differentiate from other conditions. Neurologists treat this.

See a doctor: If you have symptoms of progressive weakness without sensory signs or symptoms, you should be evaluated with NCV/EMG. Otherwise, the chances of having this uncommon disorder is small.