At your age many young adults comes with similar problem. It's due to peptic ulcer disease, may be of duodenal or gastric variety. By hearing your complaints it looks like a gastric ulcer. Its due to increase acid secretion, causing erosion of your protective gastric mucus layer. It caused by many causes like bad food habit, bad food & sleep cycle, hyperstimulation of vagus nerve etc. You need proper treatment regime with proper medications to deal with it easily. Don't take it easily. Consult for further queries. Have a good time ahead.

Any family history you should take proper diet adequate fluid avoid heavy meals Have u done any check up till now

Consultation for detailed discussion is advisable