Hi my 3 year olds belly starts off flat when she gets up but by bed its massive and feels really hard. When she was in hospital a couple of weeks ago they had to put a tube in to get some air out but I assumed it was because of her chest infection and from coughing. She doesn't complain about it or anything so maybe it's just normal for her age but she's quite thin and petite on the rest of her body. Has anyone had any issues with air in the stomach and what did you do to help reduce it? Thanks