Hello i noted your concern,
Reading the symptoms i can only think of GERD, which is acidity, but for confirmation and also to rule out any other malignancy you definitely need to consult a gastroenterologist specialist and once get the endoscopy done.
Next Steps
Consult a gastroenterologist physically for proper evaluation treatment and management
Health Tips
Do not smoke or drink alcohol
Avoid caffeine , tea intake, Soda drink
Strictly do not eat outside food, deep fried food, spicy food or any junk food
Drink plenty of water
Exercise regularly