I recently had an mri show narrowing in my spine possibly causing the left leg pain the night. It only happens at night and it doesn't matter if I've done nothing or been very busy that day. It aches to the marrow of the bone throught the night. No pain in the morning or through out the day. Not in the joints. Xrays of the legs were negative. I'm currently talking 40mg prednisolone for 7 days to see how this helps. YYYY@YYYY Kind of clueless so far. :/ It HAS interfered with my daily walking schedule.