Not sure if anyone ever answered you; but I had a roux en y in may of 2013 and after 9 post op surgeries and 2 feeding tubes, I had to have the bypass reversed. Almost four years later and I still suffer from nausea, vomiting, vitamin deficiencies and debilitating stomach cramps and gastro paresis. The only thing I have been able to do to alleviate pain is maintain a plant based diet, eat small portions and get regular vitamin infusions. As difficult as it is to live this reality, it offers a level higher than having to live of a feeding tube for the rest of my life. I wish I had a better answer for you, but I've yet to find a bariatric doctor with an answer. I've had three.