I was a pretty healthy kiddo. I had a bad case of chicken pox when I was in elementary school, but I never had mono... although when I was a teenager I remember being tested repeatedly for it due to symptoms of exhaustion... (until lately, I always assumed I was just like any other hormonal and awkward teenager). I did have the HepB vaccines in the early 90's. I was DX in 2008.

I do believe there is a genetic component though - my Aunt (dad's sis) has it.

Something else that comes to mind is that I quit smoking right before my DX by using Chantix. Since taking it, they've actually ADDED MS as a possible side effect of the drug. Crazy - I have no idea how they can attribute it to a drug, but it says that on the pamplet none the less. At least I don't smoke anymore...