Never had EBV and one of the few that have normal Vitamin D levels. Outdoorsy sort of person and drank a ton of milk as a kid - bones are very strong and it took 6 years for my braces to accomplish the job of straightening my teeth because of it. I have a couple of permenant retainers to keep it that way too.

It took downing a motorcycle to get a hairline fracture on a bone, and was the first time I ever had something break. Considering how many trees and stuff I fell out of as a kid, major surprise.
I have other possible risk factors that may have led to an MS trigger, but who knows with this thing? I chalk it up to being the lotto winner of the genetics in my family.