chronic constipation, bile reflux

I am a 24 year old woman from california in desperate need of help. last year I suffered from anorexia and binge eating disorder. I have gone through treatment with a psychiatrist and have been sucessfully recovered for over 4 months.I now have extremly healthy eating habits including a high fiber, low fat diet and get adaquate calories daily.I have also gotten to 115 Ibs. which is close to the reccomended weight for my medium 5'5 frame. my main problem is that I have terrible chronic constipation and bile reflux because of the chronic constipation. My GI physician has done all kinds of tests including the following: endoscopy, colonoscopy,blood tests,thyroid tests, ultrasound, X-ray,and upper and lower GI barium's. My GI doctor put me on carafate and then reglan but neither of them were effective.I also suffer from ahmenoreha due to quick weight loss by calorie restriction. I was also wondering if the ahmenoreha could possibly be causing my chronic constipation due to hormone imbalance.I am truly don't know where to turn and any advise you could give would be greatly appriciated.