Are There Alternative Stomach Medications That Won’t Worsen Lupus, MCTD, Fibromyalgia, And A Small Peptic Ulcer?

Hello. I have a few auto immune disease’s (Lupas, MCTD, Fibromyalga, just to name a few) I also had been told I had a small peptic ulcer after having an endoscope. Burning in the stomach, burping, queasy feeling, The Dr put me on paprazole which I understand causes LUPAS flares. I have so many other neurological issues, no pain relief recommended from Drs. (Except Med Majuanna, which in NY they legalized it but you still have to register for MED Marjuanna.. makes no sense) Is there another Stomach medicine that would help me without hurting me more?