For the last two weeks or so, DS2 (13 weeks) has been starting most feeds by sucking REALLY hard on the boob, then soon after is awash with milk and comes off choking. Nearly all our feeds are ending up a big milky mess, with soaked bra and breast pad, DS2's tshirt, etc. He also pukes up a bit, whereas he wasn't pukey at all before this. He's now starting to get quite upset about feeds.
I'm guessing my let-down is a bit full on and he's getting too much at once. But then this evening he was only popping on for one suck at a time and even that was making him cry and gag. Eventually got enough into him by lying down and talking to him soothingly to get him to keep going and not gulp too much.
I BF'd DS1 for 18 months and never had anything like this. Any ideas what's going on and what I can do?