back popped lower back bad pain was about to faint shackin?

ok was work on car trying to remove cv joint nut well i was pulling up so i was hunched over and pulling on breaker bar then i lower back pop to me i heard it load then it traveled through my back i have walked off seance its been only a day Sense it happen im just sore lower back should i have it chked out or just keep walking it out ? also when it happen i rested on a chair and the pain was so bad it felt like i was about to faint and i couldn't stop shacking idk any ideas what happen thanks