So it seems many joints in my body crack and make odd noises (my jaw, my ankle, my knee, my back, and my elbow) and I'm only 22!! I know the source of all of them except my elbow. One day I was stretching at the computer and stretched my arms above my head, and my elbow made a crunchy clicky noise. Now whenever I raise my elbows above my head and lock them straight, they make this noise like a crunch noise, almost as if my elbow's separating and then going back. It's really weird, and there's no pain. Does anyone know what my elbow's doing? I'm just curious. Thanks :)