Its been a few months I always feel fullness in upper abdomen even after 6-7 hours of eating. It continues all day with excessive gas and burps and sometimes heart burns. I dont feel like eating and my appetite has been decreased. I dont have any other health issues nor I do smoke or drinking. Not even I consume street or oily food but it happens with all kind of food. I do regular exercise and take meals on proper time but food intake has been reduced since it always feels like bloating. Please recommend some meditation.