Thank u...I been diagnosed with vetebralobasilar artery stenosis insufficiency...I also have ms...how serious is this and also seriousness of treatment...vertebrae is moderate and basilar is minor...been having strokes since age 9 with total blindness 50 min and mini stroke age 25 and literally died, so nice to be back...neuro says I have a lot of strokes on MRI and mra...neuro say half my brain atrophied and not functioning...15 lesions 1.5 to 3.75cm and too many other lesions to count and also 2 old brain injuries and lots of gliosis...brainstem has numerous lesions and throughout my brain...with all of this does it look like a big problem for me with the artery insufficiency...imstill having tia's at least 1 to 3 times so...iam 58age...Linda, thanks much...