Hi, my right knee cracks everytime I bend it - I could be kneeling and when I stand up, it will crack, if I'm sitting and stand up, It cracks, if I sit in a chair and bend my knee back and forth, it cracks. The crack is very loud and ranges from a popping noise to a crunching noise. There is no pain, however it is quite uncomfortable. If I put pressure on my knee cap with my hand, it doesn't crunch (however I can feel a sort of crunching feeling).