My 14 week old DS is exclusively breastfed, and seems to feed excessively - where he's puking on the boob and still wants more - when he needs to do a massive poo. Each time it happens I think it's a growth spurt, but it always ends up with an enormous explosion 
I guess he could be pooing because he's drunk too much, but why would he drink more than he needs? And the puking makes me think it probably isn't a growth spurt because he'd be keeping the milk down if it was
Has anyone else experienced the same thing?
I asked my healthcare worker about this and she said it isn't possible and I should just stop feeding him. Easier said than done.