It's possible you'll hear a popping or cracking sound over the adjustment. It’s absolutely nothing to worry about. Anything you hear may be the seem of gasses like oxygen and carbon dioxide releasing from your joints. You shouldn’t truly feel any pain during the adjustment. Consider referral for Bodily therapy https://chiropractic-treatment-fo53085.ampedpages.com/chiropractic-treatment-for-lower-back-pain-an-overview-61164151