How Can Chronic Back Pain Be Treated?

I am just trying to understand where my back pain is coming from. I feel at the end of 2011 and have had progressing problems ever since.. I had a MRI done 2 yrs ago...it says at L2-3 there is a 1.8mm left lateral disc protrusion that causes mild to moderate left sided foraminal stenosis...At L3-4 there is a 1.4mm Left lateral disc protrusion. this causes mild to moderate foraminal stenosis. At L4-5 there is a 1.5mm bulging disc and facet hypertrophy. this causes mild to moderate bilateral foraminal stenosis...At L5-S1 there is a 1.5mm bulging disc and facet hypertrophy this causes canal and mild to moderate bilateral foraminal stenosis. I went to a few drs they told me nothing was wrong. I had sent my images to the lazer surgery center and they told me that I would need a fusion in this world but that drs would help me...I have been to 3 different nuerosuregons..the last one sent me for a myleogram because I have a spinal stimulator that does not work and he told me that I only have one slight bulging disc and hes not sure where my pain is coming from and to modify my stimulator. My pain management dr told me from my MRI looked like I had a few herinated discs...he then touched my SI joint and I jumped so I know that there is an issue there and he wants to do injections. So what does this MRI tell me? Do u think that the Nuerosuregon is not being completely honest because he doesn t want to do anything because I am too young? The pain is getting progressivly worse and what he is telling me that the Myleogram says does not mesh with my mri or what I feel. My symptoms are like sharp pain in my lower back. Im at an 8 pain all the time. I do get soreness down my butt.. I feel like my nerves are pinched causing leg aches. I haven t gotten any better just worse and we are going on a few yrs. I cant work cuz I can t sit up at a desk like I used to. I also have Fibromaylgia. So any info that u can give me would help. Thank u very much!