cracking back You are here: Orthoped > Back and Spine (Chiropractor) Questions > cracking back admin 0 Comment Back and Spine (Chiropractor) Questions While sleeping when I move my back (lower) mostly cracks, sounds like bubble rap it craks so much.Is this OK? Related Postslump in lower back (23) severe neck pain (2) Clicking in lower back (3) cracking nuckles (2) Lump in lower right back (1) Knot on lower back (1)