According to your sign and symptom you are suffering from constipation with burning sensation.
H Pylori detection indicate you have ulcer .
I think that your water intake is low .
You should increase the water intake as 4-5 litre water per day.
You can do colonoscopy
Next Steps
Please take consultation for best treatment.
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty foods and do exercise regularly with yoga and meditation and keep positive attitude to fight any disease and any problem of your life.