The symptoms as mentioned in your post is attributed to Acid Peptic Disease
It is caused due to erosion of gastric/ duodenal mucosa secondary to increased acid production in the stomach.
Presence of pain after eating is characteristic of a Gastric ulcer.
Investigation like Upper GI endoscopy
will be helpful in determining the location & severity of the ulcers.
Symptomatic relief can be obtained with intake of Pantoprazole
preparation (to be taken twice a day before meals) & antacid
gel (to be taken after meals).
They prevent formation of excess acid in the stomach & provide symptomatic relief.
And it is also needed that you take certain precautions regarding your diet & lifestyle, such as:
1. Take soft, plain, non-spicy foods
2. Drink lots of water to maintain adequate hydration
3. Avoid fast foods & gas producing food products like cabbage, etc.
4. Avoid smoking & alcohol.
5. Keep away stress, think positive.
So, kindly consult a Gastroenterologist
for proper clinical examination.
There is no need to worry, you will be fine.
Wishing a good health.