6 weeks after bypass, my post-op nurse thought I too ad a stricture and encouraged me to drink warm lemonade to help digestion.An endoscopy showed that my suture lines were ulcerated and acids like lemonade were the worst thing I could have done. I had a Picc line placed 6 weeks ago and have not taken anything by mouth since, Another endoscopy will be scheduled for the end of September. Hoping for healing, so that I can learn to start eating again .Best of luck to you on your journey.