Hi, everybody I have some problem,my mum has had this nagging lower back pain for like two and a half years, she has tried every thing, the pyshio therapies, all kinds of medicine even used some of the food suppliments like the chinese(tiashi) but she seems not to get any relieve from all of that. She has never fallen any so this rules out the possibility of a physical injury, she has even done the CT scan but the doctors tell her that every this is okay. So pliz help me what could be the problem. Thank you

Something could be rotated or injured. Sometimes old injuries from sports and things aren't really felt because the body learns to adjust and make up for them. When people get older though, the injuries get much worse. I'm not a physical therapist, so all I can say is find the best physical therapist you can for her. They will be able to find the problem.