Pain?

I have a question for the group.  I had my sleeve surgery in August of 2012.  Since that time I also had my gall bladder removed about 8 months after that.  I was having terriable pain in my right side and after test it was detected I had stones and I needed the gall bladder removed.  Since that time, I continue to occationaly get horriable pain in my right side, just under my rib cage, down to my pelvic bone and sometimes into my shoulder area all on the right side.  I was just wondering if anyone else has this happen?  My Dr. says he believes it is gas, which I believe him, but I have not been able to determine what exactly is causing the gas.  Some days it happens when I have eaten the same thing as the day before.  I have tried GasX also.  I was just wondering if anyone else has had this happen.  TIA

Pancreatitis?

There are other bile ducts that can get blocked up too...I had "ghost pain" after my GB surgery and the doc said I could have had other small blockages in the other ducts.  Thankfully it faded over time, but it was weird. 

I'd also look into things like pancreatitis or kidney blockages.