Jean Auel, I have loved all her books so far. It's a lot of years since I first read the 1st book of the series. (Clan of the Cave Bears) I don't quite connect the storm, To me she was kicked out of the clan. She always knew she was different, I think the 2nd book was about her being friends with a horse.
And being lost after all her family had died in a storm, are we talking about the same book? - she was raped constantly, the only thing she loved, was the mother figure who know about herbs.