They can go through small periods of changing their feeding behaviour like this. I'm wondering if he's increased your milk supply and now it's a little too much for him. Breastfed babies are great at regulating their intake. If he's otherwise well, I'd be inclined to see if it subsides on its own but obviously get him checked out if you feel worried.
DS has never been a sicky baby but for the last week he has started being sick after feeds. He usually burps after a feed with no problems but anything from 10 mins to an hour after a feed he is being sick. Not a lot (about a egg cup full) but it is regular and doesn't matter if he is being held quietly or playing it still happens.
He has recently been diagnosed with eczema... Not sure if the two are connected at all but thought it may be worth mentioning in case it 'joins the dots' for someone... Any suggestions?