So baby has gerd and milk allergy, calling ped today just want to see if anyone has experienced this. He is not gaining weight he was born in the 70% percentile and fell to the 16th percentile. I weighed him yesterday and he’s in the 12th percentile now. We put him on omeprazole and he’s drinking similac alimentum. Before the changes he was drinking 15-18oz a day now he drinks 22-26oz but he is not gaining weight, has anyone experienced this and do you know what the doctor will recommend? I’ve never had a problem with babies chunking up and am starting to worry there is a bigger issue going on with him. Any advice welcome, thank you!

Update: pediatrician upped his dosage of omeprazole and we have a weight check next week, if the omeprazole doesn’t help they will do an ultrasound on his tummy to see if has some rare esophagus condition