Hello Dr. I am 21 years old 33 kg weight, 150 cm height. I have pcos and digestive issues daily since 3 yrs. I have symptoms like bloating, indigestion, poor appetite, nausea,heart burn and upper abdomen pain (some time). I have lactose and gluten intolerance issues too. I am taking medicines ppi. I am underweight so I want to gain my weight from 33 to 45 kgs. Please give me a diet which don't irritate or worse my digestive symptoms and also helps in weight gain.