Since you have not found relief from strong acid-suppressants (like omeprazole and rabeprazole) and mucosal protectants (like sucralfate), your pain may not be simple acidity. Instead of trying alternative self-medications, it is important to see a doctor for a proper evaluation. Continuous upper abdominal pain for a week warrants further investigation, potentially including an abdominal ultrasound or endoscopy, to check for conditions like gallstones, ulcers, or localised inflammation. Please consult a healthcare professional soon so they can safely identify the exact cause and prescribe the correct targeted treatment.

Since your symptoms have lasted for three months without relief, it is highly recommended to seek a professional diagnosis rather than self-medicating. 'Gastric problems' can stem from acid reflux, gastritis, or food intolerances. For temporary relief, over-the-counter generic options like omeprazole (to reduce acid) or famotidine can help. However, you should consult a gastroenterologist. They can perform simple evaluations, like an H. pylori test, to pinpoint the exact cause and tailor a safe, effective treatment plan. Please don't worry, as these chronic symptoms are very common and highly treatable once properly diagnosed.