I have been experiencing a persistent cracking sound in my knees whenever I bend them deeply or sit with my legs crossed, and this issue has gradually become more noticeable over time. Recently I also noticed similar sounds beginning in my shoulder, which has made me more concerned about what might be causing these sensations. Although the cracking is not always accompanied by pain, there are moments when my knees feel uncomfortable and even slightly painful after repeated movement or extended periods of sitting or standing, which affects my daily routine and makes me more cautious about my movements overall.