I exited the freeway and pulled straight in to a gas station, as I was coming to a stop I felt a powerful thud in my chest, heard an explosion or gun shot sound, and lost my vision for a split second. As it returned I fully expected to see my airbag had deployed in my chest, however my steering wheel was in tact. My entire chest felt like I had been punched. I looked into the mirror and noticed my collar bone was already red, as well as my right lower quadrant. I sat there and began to cry as I had no idea what had happened. I began to notice the smell of an explosion like fireworks. I asked my passenger if she saw what happened as she sat there looking at me terrified. Her response was 'no but I heard it, did we just crash?' My next thought was I had a seatbelt airbag deploy. I examined my belt and there was no airbag in it. At this time I noticed the belt was fully extended and would not retract back into the slot. I got out of the vehicle to do a walk around to make sure I had not triggered an airbag sensor. There was no damage. Now I was terrified because I had no clue what happened and my chest hurt so bad. I began to do research online and found out I had a recall on my seatbelt. I concluded it was in fact my seatlbelt when the red spots on my left collar bone turned into 1in x 0.5in abrasions the following morning. 18 hours later my right eye ball began to feel bruised. By 24 hours I began to have a headache and nausea. I was seen in the ER and had to have a CT scan