yes, ive 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 doesnt always have the same response.
Hello, To me, if it is not the pain condition, then it might be some muscular spasm related sound you must be hearing, or it could be nonspecific type of sound coming from the muscular bundle or joint region. If the symptoms persist, then it demands the medical attention and investigation, some it could be due to wrong posture so try to change the sleeping and seating posture. Hope I have answered your query. Let me know if I can assist you further.