Again, just because your MRI is clean doesn't mean that you have ALS. Millions have a clean MRI and very few have ALS. You have presented no reason to worry about it, so stop worrying and keep living. See a counselor if you can't let go of your anxiety.
Your neurologist found no weakness and you can walk 12 miles a day. Only you think your speech is changed. That doesn't sound like ALS to me.
Also, when did your neurologist say the most probably cause is MND? You mentioned your visit to him in your first post but it sounded like he didn't think it was MND. Did you see a second neurologist?
i can probably contact someone to get a copy if that.What you mean about the EMG results is not clear to me. Can you upload the de-identified report?