I have seen this term in a number of replies about unexplained pain. Even before my PMR diagnosis,five years ago, I had pain in the lower back, especially when I walked. It was a lot better when I was put on 20mg of pred but by the time I was down to 7.5, I was again finding walking trying. Now I am down almost to 3 and have been having twinges in my back. On Sunday, three days ago, I had a good and painless walk in the grounds of a stately home but when i bent to look at something in the shop, something twinged really badly and hasn't gone away. It has spread down the back of my leg and the doctor doesn't think it's sciatica. He found a trigger point on my lumbar area that made the pain in my leg worse and said he thought it was muscular. My question is: could this be myofascial pain? I can hardly walk without a stick at the moment. Although I can sit and sleep comfortably, walking is painful and slow.