Well then, you're probably the only person in the world whose RNY was done that way. Did you have some sort of medical problem that required this?
In the RNY as customarily performed, about 6-7 feet of intestine is BYPASSED---it remains attached to your remnant stomach, and is reconnected to the rest of your small intestine in a 'Y' formation, lower down.
In comparison, I had the DS, and about 20 feet of my small intestine was bypassed. Bypassing 6-7 feet should NOT cause you the sort of trouble you're having. I suspect your ulcers and strictures are the root cause of your troubles, not the amount bypassed.