My DM had F.F.I and died when I was a child. I have not developed it however there is still a chance. A few in my family have had it and I wake up many nights, terrified that one of my 3 DD's will have it. They are still young and symptoms do not appear until you are older. My DH doesn't seem to have the same fear that I do and I am starting to think that I am crazy, worrying about something that will probably not happen.