I see posts all the time about siblings, parent/child, extended fam's having these DD's . I have 5 sis's and 1 brother and none of them have this. Thank God. My mother suffered with a bad back, but that's all. My Dad ALS. Which I guess in a long way around could be related to all this. No aunts, uncles anyone. Just me. Don't get me wrong I am so thankful. I just was thinking out loud I guess. I have a big... family. And no one.