Thank you for your query on Healthcare Magic.
It is looking like viral gastritis.
Antacids and proton pump
inhibitors like omeprazole
will help to treat this type of pain and you may require prokinetic drug such as domperidone
Investigations like ultrasound abdomen and pelvis, endoscopy will try to locate the cause for pain.
Hence I advise you to consult a gastroenterologist
for further examination and investigations.
Hope I have answered your query.