Had a mri for lower back pain and pain in left leg. At L4-L5 there is tiny disc bulge without neural encroachment.There is moderate degenerative facet change and ligamentum flavum hypertroph with moderate lateral recess narrowing. At L3-L4 there is mild central and paracentral disc protrusion with effacement of the anterior sac.There is also a mild broad based disc bulge.There is mild degenerative facet change and ligamentum flavum hyertrophy.There is mild left neural foraminal narrowing. At L2-L3 there is a mild disc bulge with tiny central disc protrusion without neural encroachment.What does this all mean ?