This seems like peptic ulcer
. First and foremost you need to set your dietary habits and lifestyle right (in case if there is dietary indiscretions and too much irregularity in life in general including stress/es). In addition you also may have to take appropriate medicines. If pain does not respond within a couple of weeks or so, then you may have to go for endoscopy
. Anyway. You should do all these things only after you get physically examined by your doctor and consequently if he advises you so. I have suggested a few things only on assumption based on your complaints.