U seem to have gastritis based on your symptoms.
There is normally acid present in the stomach but it is usually balanced by antacid mechanisms.Sometimes, this balance gets lost as a result if which acid becomes more resulting in acidity.
When there is reflux of this acid into esophagus it will cause chest pain
Lot of causes are there which cause hyperacidity.most commonly it is because if one bacterial infection and analgesic abuse
Next Steps
take some acid suppression drugs , take pantoprazole 40mg before breakfast for atleast two weeks. upper gastrointestinal endoscopy is suggested to rule out gastroesophageal reflux disease.
Health Tips
have less spicy foods, eat at a regular intervals,do not have irregular diet, have adequate water, have some pillows when u sleep