I am so sorry you are having trouble after the Roux-en-Y Gastric Bypass surgery. My wife and I both had the surgery (one year apart - parents can't both be out of circulation at the same time!) and, aside from some minor inconveniences, it's been a blessing for both of us.
Be sure to stay on the schedule your doctor provides to reintroduce foods slowly. After the surgery, I felt brave enough to try some chicken noodle soup -- had the broth, and nibbled a couple of the noodles. BAD IDEA. I was regretting it in the rest room of the restaurant for far too long. But in the long run, it has been a wonderful change for both of us -- and between us, we've lost almost 300 lbs. Our lives are healthier and stronger than they've ever been in our marriage, and even with the discomfort, I'd still choose to do it again.
Hope you have better experience this time round. Keep your doctor informed on how you're doing; he/she will have knowledge about the situation and may be able to recommend a way around some of the "rough spots."