Mri results and dr response confusing. Help me understand

[Aqua3111976]

I had an mri done due to lower leg numbness..dr said its fine and to do another Mri in 6 months...if it's ok why do I need another mri...these are the findings


History: Persistent headache, paresthesias and nausea.

Technique: MRI of the brain without and with intravenous contrast material was performed. Sequences obtained include sagittal and axial T1, axial T2, axial FLAIR, GRE and diffusion-weighted imaging with ADC mapping. 15 mL of Dotarem contrast was injected intravenously without complications.

Comparison: None.

Findings: Few (<5) punctate FLAIR hyperintensities in the periventricular white matter of both frontal lobes are nonspecific and could be is sequela of chronic microvascular ischemia or demyelination. Rest of the brain is normal in signal intensity. The ventricles, basal cisterns and sulci are normal.

There is no abnormal enhancement in the brain or meninges. There is no edema, mass effect, or midline shift. There is no intracranial hemorrhage or evidence to indicate acute infarction.

The sella is normal. The brain stem, posterior fossa and upper cervical cord are unremarkable.
Dural venous sinuses and the major intracranial vessels show normal T2 signal void.

The mastoid air cells, visualized paranasal sinuses and orbits are normal.
The calvarium and visualized cervical vertebrae show normal marrow signal.

Impression: No focal mass, intracranial hemorrhage, acute infarct or active demyelination.

Few FLAIR hyperintensities in bifrontal periventricular white matter are nonspecific and could be secondary to demyelination or chronic microvascular ischemia.