4 years ago I had double back surgery to have a tumor removed from my L4. I now have a synthetic vertebra and am fused from L3-L5. Yesterday morning I reached for a cup of coffe and I heard a large pop in my lower right side of my back. I froze when it happend thinking I would experience alot of pain and was nervous. When I was getting dressed I bent over to put my pants on and my spine made a grinding noise. Long story short, some times when I breathe I can feel the odd sensation in my spine, if I bend over, I feel it, bend my neck, twist my back or reach for something, I feel it. I saw the PA at my neurologist's office yesterday and I have a CT next Friday..earliest I could get in. I was given pain meds as well as muscle relaxers. The noise is so creepy that you can actually hear the noise when I bend. The PA said that maybe the hardware in my back may have broken and if so, I will need to have it removed. It is hard for me to describe, but the sensation in my back feels like grinding and also like I have liquid in the center of my back. Has anyone ever experienced this? Please excuse any typos..the meds are hitting me! Thanks so much for your time!!!