question: My MRI sys, a few punctate FLAIR signal abnormalities are seen in the frontal lobe white matter bilaterally which are nonspecific and may be related to mild chronic microvascular changes. These findings have also been described in the setting of migraine headaches. I have sudden.y had multiple headaches for two months. I also had Rocky Mountain spotted tick fever in the past year. Is ther any real explanation for these headaches in this MRI? or could the tick fever be playing a factor in it.