That is sad, I loved her books as well.
However, I seem to recall reading an interview with her a long, long time ago where she claimed that her ideas for the dragon/human bonding in Pern, as well as the psychic abilities of the characters in her "Tower" books (To Ride Pegasus, and the others), stemmed from her own experiences. I believe she had claimed to have had three premonitions about her own life, two of which had already come true, and the third concerned her death.
Does anyone else know anything about this? If not, to Google I go...