I have joint pain. As for my ankles, I feel like I need to crack them like how people crack their knuckles. Sometimes when I try to crack them, or even move my ankle too much, it feels like the bones in my feet are twisting around each other. It causes extreme pain, but after about a minute or so, the pain goes away and it feels like it never even happened. I'm not really sure what this is, and I'm only 15 years old, so it's likely that arthritis isn't the answer.