Horrible stomach pain since DS then revision to ERNY

I had a DS in 8/2010, lost 90lbs, regained 30 in one month and had lots of acid reflux.  In March 2014 I had a revision to ERNY and have had one issue after another with only about 25 lbs of weight loss: stomach leak that they thought was my pancreas (happened a month out of surgery and damn near killed me); then at almost 2 months out there was unknown fluid in my belly again and it went away on its own; since all of this I keep ending up in the hospital with all over gut pain.  It feels like there is something trying to exit my stomach, from under breast, past outside of ribs and clear down to pubic bone.  The pain comes on at various times and I have not found any symptoms to linik it to.  Sometimes it is hot and stabbing, other times it is intermittent, no rhyme or reason.  I have also had some severe rectal bleeding and one time a lot of lower back pain with these symptoms.  The doctors are starting to act like a pain pill addict (I only get pain meds while in hospital as I cannot take pills at home and function!  I have had upper & lower scopes with nothing found.  WBC is usually quite high or quite low.  Other labs seem ok. PLEASE, SOMEBODY HAVE SOME THOUGHTS OR SUGGESTIONS ON WHAT COULD BE GOING ON!  I can't live like this!  My dotor is Gary Anthone from Omaha.