I had optic neuritis had mri diagnosed with cis. 8year later still have episodes of on and numbness/weakness also achalasia. neurologist says no connection as no change of progression to ms as symptoms are similar to before. is it possible to be ms?

Sometimes, it is difficult to fully confirm MS, and therefore, additional testing may be needed. A lumbar puncture may reveal oligoclonal bands, and if present, this could confirm your diagnosis. Achalasia would be a co-morbidity, not a sign of MS progression or relapse. As mentioned previously, a disease modifying agent might be considered, and a second opinion might be sought.