When I was diagnosed 17 years ago my neuro said the 1 attack would not show those white spots in an mri indicating ms as they are a type of scarring<sclerosis=scars>as it takes a while for a scar to form. Like if you'd cut your hand, you'd have 1st a cut, then it turns into a scar. Same w/ms.
Because of this great advice I waited for the mri and was able to forgo any invasive testing.
Good Luck tou you and laughter really is the best medicine.