I'm an M.D. and let me first say this is not medical advice :). I long ago called bunk on the mainstream view on cholesterol and cholesterol lowering drugs. I think there will be a time in the future when doctors look back on it with a "what the heck were we thinking" kind of retrospective smugness.

That stated, familial hypercholesterolemia is a different thing and it's no joke. It's been a long time since med school but I think in this case the cholesterol gets high enough that it actually is a plumbing problem. That is your arteries will get gummed up with all that extra cholesterol.

By all means do your research but don't let denial prevent you from treating this properly. Listen to your doc or get a second opinion