You may hear a popping or cracking audio through the adjustment. It’s nothing at all to worry about. Anything you hear would be the audio of gasses like oxygen and carbon dioxide releasing from a joints. You shouldn’t really feel any pain throughout the adjustment. Serious Circumstances: Tumors, infections, fractures, https://www.theorthopaedicandpainpractice.com/alleviating-aches-exploring-lower-back-buttock-pain-relief-solutions-in-singapore/