Thank you for your insight. Can I rule out ALS from my symptoms? I have no other aches or pains, just the muscle spasm in my neck.
No MRI doesn't detect ALS and it's great news your emg is normal.
ALS doesn't affect vision, headaches only occur in ALS when ones breathing muscles die as one is unable to breathe out carbon dioxide.
Good luck
also I would like to add that my EMG was normal...