You haven’t specified the duration of the pain and where it’s located on the abdomen to clarify your doubts.
If stool is normal and there is no combined symptom of nausea/vomitimg, it may just be due to acidity or stomzch ulcer or infection.
Further investigations should be done to confirm.
Next Steps
Take antacid such as pantocid 40mg empty stomach for the time being and consult at a nearby ER for further investigations
Health Tips
Make sure you notice any other symptoms with it and let the consulting doctor know or message me to know more.