your symptoms are indicating towards your gall bladder
abnormality with ulcer in GI tract.
avoid oily ,heavy and spicy food.
avoid stress related work as much as you can.
i think you should go for ultrasound for confirmation of gall bladder stone
you can use omeprazole
20 mg capsule twice daily
10 mg thrice daily .
If you have digestion problem you can add enzyme syrup.