bddouglas,

With me too, just like you, they are rechecking MRI yearly, no diagnosis of MS yet.
I had multiple lesions in white matter on MRI in 2011, suggestive of MS.

I was sent to a MS specialist. I have seen him twice now, he has been recommending repeat MRIs every year, just like you. I have since had MRI of spine as well. The neurologists say they are checking for "new lesions" I am now in year 3.

Like the other posters said, keep recording your symptoms.