I had an MRI done recently. I have Spinal Stenosis, Spinal spondylolisthesis and a Herniated Disk located at the L5-S1. This time when the MRI came back it showed white spots actually on the L4, L5 and some other ones also. My doctor said he can't make a diagnosis as he hasn't received the MRI report yet. Can you please give me some ideas what it might be and why the just started showing up after 2 years.

Summarized question: Have Spinal Stenosis. Done MRI, herniated disk. Meaning?