Suggest Treatment For Pain In Extreme Right Side Of Abdomen

I,m a 72 year old white female weighing 189 lbs. I have a problem with pain in the extreme right side of my abdomen right under my rib line. In March of this year I began having this pain, not sharp but just like a constant pain. I also developed stools that where also colorless to very light yellow,frequent bouts of diarrhea& constipation, frequent bout of nausea-no vomiting.
I have several abdominal surgeries over the years. Hysterectomy, gall bladder removal,spontaneous Rupture of bowel resulting in a colostomy with closure 2 years later. Two years ago I was to have a repair of an abdominal hernia repair. The surgeon nicked my bowel in the procedure and closed me up for four days and needless to say I had peritonitis and as a result I had 7 surgeries in 6 days with a resulting 6 week stay in ICU fighting for my life. This pain that I am having ,I have had an MRI which showed some dilatation of the Biliary Duct but nothing else. I have 2 liver function studies done and the results were a little a little out of normal but not too drastic. I also have had a sonogram done which showed a dilatation of of the Biliary Duct. So my question to you is where or what else can we look for because I,m still having all the symptoms yet.Thank you .