Hi all. I am a 30 year old male in the us army. I am an infantryman and have been deployed to Afghanistan 3 times. I am in great shape and run on my own. I have been having back pain for 4 years after falling 30 feet down a mountain with full kit and roughly a 100 pound rucksack. I have severe pain just above both buttocks roughly 1 to 2 inches on either side of my L4-5 it is very sharp and sometimes burning. I have tingling in both feet and when I stand or sit for long periods of time my legs go numb. Occasionaly I have shooting pains down the right leg. I also have a severe pressure at the L4-5 area when standing up and bending over. I have just received a copy of my MRI and it states:

There is moderate loss of disc space height and disc hydration at L4-5 and L5-S1. Schmorl's nodes are seen at the T11-12 level and L1-2 through L3-4 levels inclusive. The marrow signal is within normal limits. Vertebral body height and alignment is within normal limits. There is no abnormal signal seen in the imaged portion of the spinal cord.

At the L1-2 level there is a slight broad based annular bulge. There is no disc herniation, foraminal narrowing, or central canal stenosis.
(same thing for L2-3, and L3-4)

At the L4-5 level there is a large broad based annular bulge with a central focus subligamentous disc protrusion. Within the base of the protruded disc there is a horizontal T2 hypersignal consistent with an annular rent. The disc protrusion causes a mild concave anterior deformity of the anterior thecal sac. Mild degenerative facet joint changes are seen bilaterally with mild thickening of the ligamentum flava and the factors in concert are causing mild to moderate bilateral foraminal narrowing and mild central canal stenosis. There is no acute disc extrusion.

At the L5-S1 level there is a large broad based annular bulge with a central disc protrusion. The discogenic changes cause moderate right foraminal narrowing and mild to moderate left foraminal narrowing. The protruded disc component causes a mild concave anterior deformity of the anterior thecal sac and contacts the right S1 nerve root displacing it posteriorly somewhat. There is no frank disc extrusion. There is no frank central canal stenosis.

Impression: Multilevel discogenic changes as described above.

So could someone please explain what this means to me. Thanks for your time.