(((((Mel)))))
I think the feeling is very natural, but I also agree with Tulip that it would help you to be talking with a professional.
Does your husband know how much the wreck is affecting you emotionally, apart from wanting to move?
I'm glad your daughter is feeling better physically (and I hope you're talking with each other about the emotional aftereffects - I expect she's having some too, and it would help her to know she's not alone).
Take good care.
Speed comes from what you put behind you. - Judi Ketteler