2008 KIA RIO Unknown Or Other Problems

I WAS TRAVELING SOUTH BOUND ON THE HIGHWAY GOING TOWARD THE PET STORE (THE DESTINATION I WANTED TO GO TO). I SLOWED DOWN WITH THE FLOW OF TRAFFIC, I DONT RECALL WHETHER THERE WAS A LIGHT THAT WAS CHANGING OR NOT . LIKE I SAID I DID SLOW DOWN AND APPLY MY BRAKES, AND THAT IS WHEN I FELT SOMETHING WRONG. MY VEHICLE DID A JERK WHICH CAUSED ME TO GO IN AN OFF HANDED DIRECTION AND TRYING TO CORRECT THIS I SWERVED TO STRAIGHTEN UP MY VEHICLE, AND IT DID NOT WORK OUT , I WENT TOWARDS THE MIDDLE MEDIAN OF THE HIGHWAY ROAD.... I KNEW I WAS GOING TO HIT THE POLES IN THE MEDIAN. THAT IS THE LAST THING I REMEMBER SEEINING. THE POLICE RECORD WILL SHOW I WENT HEAD ON WITH A TRACTOR TRAILER. MY MAIN CONCERN ABOUT THIS WHOLE ACCIDENT WAS I FELT SOMETHING HAPPENED...