How do they revise rny?
Usually, they will check to see if your pouch ahs stretched or the opening to your intestines have stretched. If so, they can tighten them back up and also bypass more of the intestines. Also, a lap band can be placed or a switch to DS.
However, if your BMI is not high enough I don't know if you would qualify. You may want to check out www.5daypouchtest.com and see if you can get 'back on track'.
Good luck,