First, Aaron, your doctor told you no. Trust your doctor. Doctors are really smart.
Second, allow me to be the third person here to say you haven't described ALS in your symptoms.
Third, you've been disobeying rules with multiple threads. Twice.
Stay in this thread until you leave, or I will simply delete your future posts without notice.
ALS doesn't move that fast.
The EMG is the gold standard test. However, it is only used after everything else has been ruled out, because ALS is such a rare disease, it makes more sense to look for common diseases first. What you describe could be lots of things including pinched nerve or just nervousness.
Again, if you're still concerned about any of this, go see your doctor.