Spinal stenosis is another general term, referring to a spinal canal narrowed by something at multiple levels. If this is not getting better with rest, you need a specific anatomical diagnosis, which sounds like it may be afoot. Incidentally, epidural injections have not been shown to be of much benefit in localized pain from nerve root compression, but transforaminal injections have. I have some professional background in this area, but more importantly, I’ve lived it as a patient and come out the other end pretty happy.