Welcome to HCM,
It seems that you might be having gastritis
Continue medicine for few days and if there is no improvement then go for EKG to rule out any cardiac ailment.
There is another possibility of having Costo-chondritis
If EKG is normal then take some analgesic
medicine like Diclo-para combination tablet.
Avoid fried, chillies and junk food.
Ok and bye.