What Causes Grinding Noise While Lifting A Leg?

yes, i've had sudden onset of grinding noises and feelings in the right hip socket when lying down and lifting leg, also, in lower back when twisting direction of body (more so to the left) while seated, as well as, in the upper back when moving arms upward or rotating shoulders..
For a long time have had similar sensations in neck, a real feeling of bones rubbing against each other.
There is no pain associated with the grinding..Once in a while when I turn my head quickly from one side to the other, it is like an electrical shock, or similar to something being hung up then suddenly released - very shocking. Any ideas what is going on with all the crunching. By the way it is not real predictable, the same movement doesn't always have the same response.