car accidents are terrible. i was in a serious one years ago i am still trying to recover from. a couple of weeks ago i got hit from behind by this 70 year old nutjob while stoped at a stoplight. she totaled my car, her car, and took a big chunk out of the car in front of me. i was fine the day it happened, but the next day holy shit i was in pain. if you can give yourself more than 2 days, you will need it.