Hello all, thanks for your replies. I'm the mom in all this with a few more details. Within about two weeks after birth he had begun to settle, would be awake and not screaming, looking around, etc. Then, suddenly, he went back to being a screamy baby a lot of the time. From 0 to 60 in 2.5 seconds flat, we say. He will begin screaming from waking up, directly after unlatching, during feeds, we just can't figure out what is happening and really think it's a combination of things. We use infacol, and when I can remember to give it before every feed it seems to help. He has a lot of gas and also hiccups - all the time, it seems! I've figured out that if he's fussy from the start of the feed it's probably gas, and if he's fussy during the feed after a decent amount of time, I should switch him to the other breast. He eats well but slowly. He seems to have an active period of feeding of about 20-35 minutes but will scream if I take him off after that and will then stay on the breast for sometimes hours at a time. He is still pulling milk as I always see milk in his mouth when I have to relatch or try to take him off. He does not have the classic symptoms of GERD, such as projectile vomiting. The ones he does have are occasional choking during feeds (which I have heard as a symptom of overproduction), sounding wheezy during feeds, fussiness during/after feeds and spitting up hours after feeding. Has anyone had luck asking after this with the GPs at DMC? I'm not too fond of them in general but maybe I've been to the wrong people there. Now that I can ask for specific GPs it might be helpful to know which ones other people have had luck with.