Cracking/Painful Joints

Hi Everyone,

Was wondering if anyone shares a similar issue. My joints are always cracking/popping involuntarily. Every time I crouch down to pick something up, *crack,* every time I bend over *crack*. It's usually my hips and knees. I don't know if it has anything to do with me growing up as a competitive dancer for about 12 years, because friends of mine that I danced with have this problem as well. It tends to mess with me as I exercise, for example, if I lay on my back to do bicycles... my left hip clicks (always feel it, can't always hear an actual sound) very time I extend it my left leg in the bicycle motion. Or if I stand and do side bends while bringing my knee up on each side... my knee will pop every time I straighten my leg. It usually tends to be my left hip and right knee.

I also have intense pain in my left hip whenever I stand after sitting for an extended period of time in a chair. To the point where I actually limp. On a side note, I am only 26 years old.

I do know that last time I had blood work done, it showed I am deficient in vitamin D. I've increased my intake but still the same issue. I have had an x-ray done on my hips but it's shown nothing. Any advice?