Suggest Treatment For Abdominal Pain And Numbness With Intermittent Pain On Face

I was involved in a car crash 3 years ago - since then I have had every oscopy available to try to diagnose the abdominal pain I am having. I recently had exploratory surgery and they found nothing, but he also injected an anesthetic into the abdominal wall - and it took the pain away, temporarily. We take this to indicate that there might be nerve damage. But I also have other nerve damage symptoms and I am wondering if they are all related in some way. The left side of my face, jaw, tongue are numb and tingling, with intermittent pain - I have abdominal pain, an aching that radiates to the back and into the arm pit, and I have numbness and tingling in my left arm and left foot. Could that many nerves be damaged or could it be something else or???