LO2 (1 week old) pulls off the breast at least once per nursing session and kind of chokes/sputters/swallows and then goes back to eating. He also spits up fairly frequently (though it isn't projectile at all, and only tends to be directly after eating - often if I lay him down for a diaper change).

I don't remember this happening with LO1. Is this common? Is he getting too much milk/too fast?

He feeds from both sides for most sessions but often doesn't finish the second - it still hurts from being full. during the day, he often only eats for a couple minutes on the second side.