You have symptoms that could be ms, but because there are no symptoms particular to ms you are now likely in the rule out stage.
If the lesions are large enough or in the right places, you may end up with a quick diagnosis of ms. This would only be possible if your mris were done with contrast, and showed dissemination in time (i.e. a lesion enhancing to show it's active along with older inactive lesions) and dissemination in space (in at least two different ms diagnosable parts of the central nervous system -- juxtacortical, infratentorial, perventricular and spine). Quick diagnoses are pretty uncommon.
You most likely will be asked to have another mri in 3-6 months, and then annually if they still are unsure about a diagnosis. Neurologists are generally uncomfortable with a quick diagnosis, and there is no proof positive test for ms. They want to absolutely sure before starting ms meds, because there are mimics that are very close symptomatically, even mimics that exhibit similar lesions! As well, ms meds are not without their own problems, and can worsen other conditions if one is misdiagnosed.
Lesions in other brain locations could be caused by ms, but have a myriad of other causes as well, so lead one away from ms as a diagnosis.
If the lesions are small and no enhancement, or in the wrong places, you will end up in limbo if no alternate diagnosis is found, waiting for a change to your mris and likely even more blood work and testing (neurologists have at their disposal even more tests for more obscure things than gps ;) ..).
Some neuros at this stage will tell you that you don't have ms, which may very well be true, or which will be true until you are either diagnosed with ms, or with a mimic. Others will say that it`s not likely ms, or sometimes you may hear it is possibly ms but we need to wait for proof.
You may be asked to do a lumbar puncture if things don't look obvious, however in many parts of the world, they are being phased out. As well, 5-10% of persons with ms don't show oligiconal banding, so it's often done to look for other issues.
I hope this helps, and I also hope you don`t have to wait too long for answers. It can be a very frustrating time. (((Hugs))) '