hello I have lower back pain on my right side I had a xray and MRI with contrast and nothing showed up I still have this pain in my lower back it hurts when I bend or sit down or when I try to get up Or cross my leg. My doctor gave me some percocet An Reflexril ,its been about a month now since the pain have come to become more aggressive. The Pain helps but the pain is still there... its a burning,stumping, aching pain. ItS a annoying pain that won't leave. not sure what's going on but I know something is going on... any advice will be helpful. I have also put a heating pad on it and take long hot showers...