MS can mimic more than 100 different diseases including those with lesions in the spine and brain. This is why they do so many different tests before handing you that label.

Sjoghrens comes to mind. it can cause many of the same symptoms including dry eyes, visual issues, dry painful joints, and so on. My MD sent me to a rhuemy to be sure.

they would also handle lyme, lupus and a bunch of other things that can mimic MS. Best of luck.