I really do not know how to explain these, but I have the same thing you do, just different disc's. I believe with the bulding that means the disc is displaced and moved out toward the front of the spinal area. Stenosis is when a part of the spine is diformed and tilts inward. All of these can be very painful. I know, I will be on pain pills for the rest of my life most likely. The best thing you can do is, set down with your neurologist and have him explain it to you with one of those fake spines they have in the office.