How long has this been going on? Any muscular weakness? Any problems with speech or swallowing?
I have encountered many cases like yours and none of them have turned out to be ALS or any MND for that matter. I don't think you should concern yourself with this quite frankly.
Have you had nerve conduction tests done?
This would be one additional test you could do for further reassurance. :-)
Yes. Everything you say here is accurate. Some would say the test is not necessary, and you certainly could wait and have it done later. However, a normal result would certainly take an MND off the table completely.
You're right about the body. Evolution is an amazing engineer! Research neuromuscular irritability or hyper excitability and you might find some information to satisfy, at least partially, the electrical engineer in you. :-)
You're welcome. Follow up anytime.