Car Accident Recently Please Read

So I recently got into a car accident on Friday it was not a huge big accident no one got badly injured but I do remembered tensing up and shaking during it, felt fine a couple of hours later my lower back hurt no big deal as the night went on I just felt very tense and shaky I do have an anxiety disorder lately I have been having aches and pains throughout my body and still some shakiness it’s 3 days after my accident now what can this be have you experienced this? Thanks for the help!!