Pain in left side of Abdomen

I have had sharp, stabbing pains in my left abdomen area for going on 6 months.  I am 6 yrs post op.  At first, docs thought it was a epydidimitis, then a spigelian hernia, now they have no clue.  CT scan was normal, colonoscopy and endoscopy normal as well.  I am beginning to wonder if it is due to the fat layer pulling away from the underlying muscle since it worsens substantially if I bend over, lean forward or lay on my left side.  The only thing that throws this theory off is it also is extremely painful in that area if I lay on my stomach.

Just wondering if anyone else is experiencing similar symptoms or gotten a definitive answer.  Thanks for any replies.

Sorry, I wish I could help. That doesn't sound like any fun.