For the last one week, whenever I ate any food containing chilli, I had a burning sensation in my stomach and chest. This is happening even when the food is not spicy at all. I quit putting chillis in my food and there is no problem at all. I used to have spicy food a lot. I had great tolerance. I do not understand what happened suddenly. I am able to tolerate mild quantity of black peppers and ginger. But even the mildest quantity of chillies, chilli powder is causing trouble. I do not smoke/drink. I have a very normal lifestyle. What is causing this problem, please help me understand.