When he was first born, my baby didn't spit up often. As he gets older, he spits up more. He is 15 weeks old now. Within the last two weeks or so, he has been spitting up a lot more--all over himself, me, daddy, grandma, the floor, etc. It looks white with curds. I'm slightly concerned that he's not getting enough digested. I haven't had the chance to weigh him lately (no dr visits) but each time he's weighed he's gained appropriately; he was at the 75% at last month's dr visit. He seems happy and the spit up doesn't bother him. Sometimes he even smiles about it (like when he puked on daddy's face ). Should I be concerned about this? Is there anything we can do to minimize the spitting up?