hey there have you had any back problems (surgery). i am currently going through the same pain lower right back and feels like a butcher knife going through to my abdomin. i had an l5 s1 fusion with hardware in march 2008 and hardware removal in june 2009 the pain is still there though they doc says give time to heel i'm not really sure if it was the hardware yet. let me know past back probs. and how the pain is actually. i feel your pain wish you well.