Diagnosis of lower back and hip pain

I have had lower back pain most of my life. The last year or so, the pain has been chronic (every day) and after going to see my chiropractor, he thinks it's possible I have a disc problem in L-4. The pain is not in my legs and is most severe when I get up in the morning or have been sitting for some time. The pain lessens (but never goes away) as I go throughout the day. Often times I find relief when I sit in a leaning-forward position while laying my head on a table. Bending over hurts but moving my legs doesn't. I often feel the pain through the front pelvic area but it doesn't feel like menstrual cramps (or the pain I suffered from endrometriosis). The pain is most severe during the night. In order to turn over, I have to move myself with my arms because it hurts too much to move my hips. The pain is completely centered in the lower back and hip area. At this point in my life, I don't have insurance and need some alternatives that are affordable. I do know losing weight will help... which I'm working on. Thanks for any advice.