Hi, I posted on the childbirth forum a few weeks ago about my LO losing 2lbs the week after he was born and not regaining it in any hurry (he is almost 6 weeks). After various tests coming back negative, the doctor thinks the lack of gain could be down to Cows Milk intolerance. DS had been on SMA lactose free since week one as his older brother was diagnosed as lactose intolerant at 3 months after a nightmare with colic etc. The doctor moved him onto SMA high energy middle of last week - he lasted 36 hours and projectile vomited all over the house. Then moved him onto Neutramigen. First 48 hours were ok although he seemed to have a little more wind and be less comfortable than on the SMA. Then fast forward another 48 hours and he is screaming the house down after every week, really unsettled at night, and belching like a builder when the wind eventually comes up. He screamed for 3 hours after his bottle yesterday afternoon. Has anyone else had this reaction to Neutramigen? The thing is, he does seem to be clocking up the weight again since hes started it - hes put on 9ox in 5 days so there must be something in the CMP allergy. We moved him back onto the SMA Lactose free at 6pm yesterday until we can speak to the dietician as couldn't bear to see him in any more pain - and hes been grand all night - no wind, no screaming, restful and content... Has anyone else had any similar experiences? Grateful for any advice - thanks