Shaken Baby Syndrome?

Today I was in the car and my baby wouldn't stop screaming. He's almost a month old. I swerved very hard across 2 lanes and slammed on the brakes to turn into a parking lot and get out. Then slammed on the brakes to park. Could this have seriously hurt my baby? I was extremely frazzled and going crazy. I HAD to get out of the car and relax. Now just thinking I may have hurt my baby somehow is terrifying me and I just wanna die :(