My son is 6.5 weeks old & and exclusively breastfed. From birth, he has spit up (at least a little) after each feeding despite my efforts (burping during/after each feeding, feeding "upright", keeping him upright after each feeding, etc).
He is gaining weight and is not fussy when he spits, but it seems he spits up several times after each feeding - even up to 15-20 minutes afterwards. Is that normal? Should I be concerned?