I think Elijah was five or six months when it completely stopped - the reflux formula we used, HA-AR helped but only made his windy tummy worse - the formula being thicker it was harder for him to pass wind in thick poo! But he went back onto normal formula (and breastfeeds as usual) at six months and was fine. YAY! Gosh that was hard, so glad it's over... I do notice now though that on the days I have more cups of tea, he has small amounts of reflux and is more unsettled.