For over 2 years, I dealt with chronic back pain
that just seemed to get worse. I underwent nerve ablations, injections, chiropractic treatment, physical therapy, MRIs (which showed several bulging but not herniated lumbar disks - my PCP says there's not much difference between bulging and herniated), Xrays, CAT scans, etc. etc. Nobody could figure out what was wrong, though the pain was near my SI joint. I went to my PCP once and asked if it could be something internal, even cancer.