<s>[INST] My upper back and neck sometimes crack when I breathe in heavily. Also If I just slightly tilt my back to the right it will crack (the amount varies) should I be worried and see someone or is this normal? I take adderall and I know that can cause stiffness... [/INST] Hello, The crackling sound what you hear is due to spondylitis of the joints in the neck and spine, although you have not told me your age. It is a common condition in patients aged above forty. The diagnosis can confirm on x-rays after consultation with your physician. In the meanwhile, you can start physiotherapy with gentle spinal strengthen ING exercises. Hope I have answered your query. Let me know if I can assist you further.   </s>