it sounds like reflux to me. cause after milk, the acid juices will be overactive and they'll surge up cause your baby to be in discomfort. which explains the crying when you put him/her down - cause the acid flows up easier. doctors advise holding the baby up for 30 mins after a feed to let the milk flow down, and also burping the baby often in between feeds. it does get better as they grow up though.
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