<s>[INST] Hello. My name is Brittney and i have been experiencing chest pain in the sternum area and right collarbone for about two years. My sternum pops daily and also cracks when i inhale sometimes or just randomly throughout the day. My chest constantly feels like it s tight, especially when i breath. It feels like i cannot fully expand my chest if that make any sense. Also when i twist my upper body it not only grinds but forces me to inhale and exhale air. [/INST] Hello dear, thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion you are having mostly anxiety related symptoms. But better to rule out cardiac cause first for your chest pain. So get done ECG. If ECG is normal then no need to worry much for cardiac cause. Also get done chest x-ray to rule out pulmonary causes. If this is also normal, then no need to worry much for pulmonary causes. You are having mostly anxiety. So better to consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic Chat Doctor.  Avoid stress and tension. Be relax and calm. Don't worry, you will be alright. </s>