I've had a bad back ache (for 11 years)

I don't know exactly what is wrong with my back.  I have fibromyalgia, migraines, restless leg syndrome and periodic limb movement disorder but that's not why my back hurts.  I have this paper and it says all the stuff I'm about to write but I don't know what it means.  Can anyone help me?  mild arterial occlusive disease of the bilateral lower extremities with a moderate to severe level of the disease in both feet and toes; narrowing of the canal at L2-3 due to multi-level disc bulging and ligamentum flavum hypertrophy and mild spondylosis of the facets; disc bulging and spurring at the c3-4 and c6-7 levels;and disc space narrowing at t8-9 and schmorl's nodes in the lower thoracic spine.  If anyone can tell me what this means please advise.  I take a fistful of pain pills everyday and since the death of my son I take nerve pills and sleeping pills also.  Methadone and Norco are the main pain pills that I take.  I'm prescribed 4 of each everyday.  3 muscle relaxers and 600 mg of seroquel to sleep.  Ativan for nerves.  I'm still in pain though.  No one has ever mentioned surgury to me.  I don't know why.