How did you find out you have a blockage? if you do have one. Was it an MRI? I’m just curious, I’ve had several MRI’s tht show white mass lesions on my brain. I was 40 when my symptoms started & that was when I had my first MRI, I’m 49 now & I’ve had several since. I was told it’s unusual to have white mass lesions tht young but sometimes migraines can cause them.