whiplash involves the neck not the lower back. you will need to see your medical provider again so that the back can be properly evaluated. the same thing happened to me and when i had an mri done they determined that i had a herniated disc.
in a auto accident now my lower back is hurting been a month why? . i was in a car accident one month ago i cracked my rib and had whip lash in my shoulders and neck. but two weeks ago my lower back started killing me. it hurts from the time i get up till i go to bed. is this still whip lash?