Did you know that there’s a rare syndrome-- fibrodysplasia ossificans progressiva—that can cause your bones to grow so uncontrollably that you become a “stone man”? That’s just one of the strange ailments described in the Hypochondriac’s Handbook, a new book chock-full of rare diseases. USA Today interviews author Ian Landau, but we’ve decided to cut to the chase and just list all the cool diseases he mentions. Like…