Feeling clueless. Reflux or CMPI? 😩

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Hi. Just looking for advice. I've been to the GP a few times but I just feel clueless.

My baby is 8 weeks old and is suffering with reflux.

Usually 30 to 60 minutes after a feed, my baby will become distressed until he brings up some sick (usually gloopy and white with curdled milk). He normally brings up one or two tablespoons of it, over an hour.

It smells acidic and is disturbing his sleep and feeds. I'm really struggling with him being upset through the day.

He is exclusively breastfed.
He had baby acne on his cheeks, scalp and chest.
He's putting on weight.
He can sound congested and a little wheezy.

I stopped dairy for three weeks but he was also on omeprazole for two of those weeks and symptoms improved.

We stopped the omeprazole for a week and he was largely fine.

I had some dairy over two days and hours reflux came back.

Any experiences of what this could be?? The upsets used to be mostly on an evening but now they're just random.

Tia

Reflux can be caused by cmpa or something else. My daughter has food allergies and reflux and needs a lot of medication to control her reflux. I would probably stick with dairy free and omperazole a bit longer but don't weight adjust the omperazole. After the next growth spurt see if the reflux returns or not. If it doesn't you might be able to reduce the omperazole or keep on the dose you are on and they slowly wean themselves off it.
Say he is 4kg now and no 4mg that's 1mg/kg. If he grows to 5kg and still on 4mg that is now 0.8 mg/kg. At 6kg the 4mg dose is now 0.67 mg/kg. The therapeutic window for omperazole is 0.7 -3.0 mg /kg so if you drop below 0.7 without symptoms there's a good chance you could wean off successfully. I'm just using these doses and weight to demonstrate how not weight adjusting can wean them off omperazole and are figurative and chosen only because they made the maths easier. Always follow the prescribing advice of your GP