Fundoplication Nissen

In May of 2007 I was diagnosed with barrett's esophogus and a laproscopic fundoplication nissen was performed along with a repair to a hiatal hernia.  Directly after the surgery and till this day I suffer from severe gas pain and sharp pain underneath my rib cage and was having trouble swallowing.  1 month after the procedure my surgeon performed a dilation which caused my fundoplication to slip.  For 5 months I was in very severe pain and I was told that due to the slipped wrap my liver and stomach has severe scar tissue.  I went in for a repair of the fundoplication in January 2008 which they had to let the wrap down to a 270.  Since then I suffer every single day with severe gas and rib pain.  The only thing that seems to help is aloe vera juice to surpress the gas pain/bloat.  My rib cage feels like muscles that are torn.  I currently am seeing a gastroenterologist and he would like to perform another scope on Oct. 15th.  I have had all the known tests performed 24 hour ph, CT Scan, X-Rays and the list goes on.  Each time they seem to find a new diagnosis, currently I have been diagnosed with gastritis, barrett's esophagus, esophagitis, IBS, and suffer from monthly yeast infections.  I have been taking prilosec 20 MG everyday for 1 1/2 years even after the surgery.  I am very miserable do you have any ideas or reasons why I am suffering?  Any advice you could give me would be appreciated.