I don't like to have to think about what could happen but knowing how sensitive my system is, I do.
I came across this, now I am freaked about getting an MRI if they want to do one.
Again it is your best choice for imaging.
Otherwise you can continue the supplements for the myelin, which can help over time if there is demyelination. Or you can try herbs to strengthen the nervous system such as juniper berry and gotu kola.