Been experiencing lower back pain for a few years since a bout of sciatica 4 years ago. Was out of work for a week last year and haven't been able to get on a treadmill for almost two years. The same symptoms are coming back. Saw a chiropractor for 4 months last year during the missed work episode. Treatment was with traction. Hasn't seem to help. I rarely can walk for extended periods of time without lots of pain. Is it time to see a surgeon?