My son is 5 months old , poor weight gain was the 1st sign at 6 wk check up, at 12 weeks old he just stopped feeding, refusing feeds and crying constantly so dietician put him onto nutramigen which made no difference so I was advised to use carobel thickener which made an instant difference, and then ranitidine too, dietician says reflux and milk intolerance go hand in hand, so 8 weeks on he was pooing 3 times a day very loose so weve now been on neocate for 1 month, he was much more content on this but still loose bowels and has never really gained more than 2oz per week, he was 7lb9oz at birth and now 11lb13oz, last week dietician suggested changing back to normal baby formula to see if he has a milk intolerance, done this for 1 wk and he seemed fine loved the taste and was drinking an extra 7oz per day but only gained 1/2oz in weight :( his poo now also smells of vinegar and he is showing signs of reflux again! Dietician thinks these are definite signs of intolerance So back to neocate again? Fed up changing milks trying this n that! Starting solids next wk so hopefully he'l settle then:(