Hi, I am a 63 year old male who has mild lower back pain, but for some reason I have been able to pop my vertebrae for years. It is is very easy to do, but can pop almost continuously, and if I pop it too much, I experience some discomfort. I pop myback when I sneeze, when I bend over to pick something off the floor, sometimes just reaching for something. This has been going on for more than 10 years. I have talked to my Dr about it, but he just brushes me off. Do you have any idea what is causing this?