It sounds like what you're describing is soft tissue injuries in lower back region, which can become worse over time.It is a common misconception that back pain alawys stems from the pressure of a slipped disc or a trapped nerve. This is misleading, the main cause of pain is inflammation stimulating nerves, causing the pain signal.
Given the severity of your pain and the functional limitations it's now placing on you, it probably is time to consult with a physician.
I would agree that physical therapy, intensive acupuncture can be helpful
