DMT's and No Symptoms: Is it Possible?

Well I actually haven't had an MRI in several years. I have been uninsured since 2019. That was when I quit my last job and around the time of my last MRI. I was approved for SSDI in April by an Administrative Law Judge. It took Social Security until July 12 to agree with him. I now have Medicare parts A and B. With the disability date put as October 19, 2019. My Medicare part A effective date is April 1, 2022 and my part B effective date is July 1, 2023. As I have been trying to get a Medicare advantage plan they are trying to say that I have to wait until the Medicare open enrollment in October.

I started on Rebif back in 2007. Around 2012 after experiencing a relapse a year in 2012 they said I had developed neutralizing antibodies to the Rebif. I was going to have to change DMTs. Copaxone was still daily at that point and the oral meds had not been out long enough for me to feel comfortable using. We also changed doctors. I waited months and didn't get to see the doctor I wanted. The new doctor convinced me to go on Tysabri. Since the JC virus test was negative I took the doctor's advice and went on Tysabri. I had to leave that doctor in about 2015 because it was too much for me to drive/ride 4+ hours each way once a month.