Hi Luke. Welcome to NeuroTalk.

From what you say in your post, it seems your Neuro
suspects MS, but not yet willing to commit to a DX.
A second opinion is a good thing to do or you could
relax and "wait and see", which is what a bunch of
us do or have done.

In the meantime, if you have symptoms that are
severe, then ask your Doc/Neuro/Optho to treat them,
to give you some relief, while you (wait and see).

I hope you will like it here and keep us informed
as to how your DX journey goes.

Take a deep breath. Stress is a nasty trigger for
MS symptoms.