Neurologist refuses to give me meds because my MRI is unchanged since 2020, what would you do?

I completed Mavenclad/Cladribine in 2020.

Today, I have new symptoms (which emerged over the past year), but the new scans say the disease is inactive. Which is good, I guess, but my gut and brain agrees that starting full regular treatment is much better than waiting until further damage is done in a way that shows up in future MRIs.

But the doctor says, no, we got to wait until we can prove that more damage has been done.