History noted. Please don't be afraid. You have gone through an acute gastritis
episode. You have been treated with antacids and a course of antibiotics. Well and good. Kindly try to avoid stress
for few days. Continue the tablet which has been prescribed for 20 days. To get rid of the constipation
drink 3 litres of water per day and take adequate fibre rich diet. Usually mild gastric erosions will result in such manifestations. If the same persist for long time there is a chance of developing ulcers. Provided if you modify your food pattern to less oily and less spicy one with adequate fibre and adequate water intake these erosions will heal faster. then you will be free of pain. Kindly do the tests prescribed by your physician along with one stool routine test to rule out any other infection or worm infestations.Get well soon.