Hey I read Sarno's book 3 months ago and am so amazed at the results. I've had 20 plus years of chronic lower back pain. Today I'm feeling pain free from what I used to get (spasms). This is the most I've played basketball and martial arts in a long time and I'm loving it. However, I've noticed that my lower back is really tight. Almost as if there's a big piece of tape strapped onto my lower back. The best way to describe it is if I try and do knee hugs while lying on the floor, my back is really tight down there and there's some pain, but not the same spasm pain. More muscle tightness pain. Has anyone else had this? Got this? Any suggestions? Also if I do the cat cow pose I can really feel it. Only when I arch my back up to the ceiling while on all fours.