I've had a bad back for years and I had a double disc replacement about 4 years ago. Since then I have had a lot of pain and stiffness and pain in lower back/glue/hip/ and especially hamstring. Had physio after the op for about 3 months and didn't seem to really help. I have been reading about AHT and I seem to have all the symptoms. I was wondering if anyone else had or currently suffers with this and any stretches or programs which help correct this