Hi I m asking a question on behalf of my mother. She s been suffering from left upper quadrant pain which has been radiating down her left arm, usually as she s in the middle of eating food and she has to stop. She s getting gastric reflux and takes antacids prior to food. She thinks she may have a gastric ulcer. Does this sound like the symptoms? She saw a new Dr who has referred her for an endoscopy and prescribed omeprazole but was told not to take these till after the endoscopy. I thought these are normally taken first and if no resolve then an endoscopy would be done? Thanks