I was stopped on the highway behind two other cars that were also stopped at a lane merger. A car hit my vehicle from behind and the impact caused my vehicle to hit the car in front of me, and that car to hit the car in front of them. When I unbuckled my seatbelt and got out of my vehicle, I noticed that my seat (driver's seat) had reclined backwards. I have lower & mid back pain as a result of the crash. My vehicle is currently at a tow lot where it has been labeled a total loss.