Much better question for your surgeon, but it's possible that you have scarring from endometriosis.
was this discussed?
HERE IS A GOOD REFERENCE FOR YOU
are you there?
so endometriosis is a possibility
and with what you are describing I would say a probability as well
can you see the informational link above?
it's hard to say what the cause of the pain is, but scar tissue and 'adhesions' within the abdomen can be painful in certain circumstances... endometriosis itself causes pain. it sounds like your surgeon believes that he can relieve your pain with the surgery, but before getting this done I do recommend asking this very question of him/her.
what further questions do you have for me?