Child, 18 year old, under weight and nutritional, height 5'10", weight 42 kg. He was suffering from IBS. Used to take leave 8 to 10 days in a month due to stomach pain. Used to go to toilet to empty stomach shortly after meals. During this period I had seen the side effects of drinking 8 to 10 glasses of water. But I was still highly convinced that drinking this water 1 hour before meals could do...