Not sure, if there is a standard time for when lesions appear?

I wanted to address the spots in your vision, that you mentioned. Those are sometimes noted as people age, laymen's term is 'floaters', not MS related, that I am aware of.

Nystagmus is something you may want addressed with your ophthalmologist.

Are you currently in school? Stress from all that extra course work, can create havoc with your eyes, in my humble opinion.

Hope you find some answers. And no, I don't feel, it's a waste of time to rule out everything you can with your physical health. What will your neurologists, next course of action be, from here?