Steroids and RNY (or VSG)??
I am on low dose steroids for the rest of my life. I don't ever take NSAIDS and I only take my meds prescribed and very little over the counter meds. I also rarely drink alcohol so I'm not adding any extra stress on the system. Knock on wood but I've had no problem with GERD or ulcers.
I hope that your surgery helps you get and feel healthier.