Hi, my son is 4 weeks old. Almost every time after he eats, within about 20 minutes he begins crying--screaming rather-excessively. He will stop for brief moments, and then start right back up. He will even begin falling asleep, and he wakes up out of his sleep to cry-as if he is in pain. He burps well, he is not spitting up, he has been pooing fine. My doctor said this is normal, but I do not feel that this crying is normal. Does this sound like colic? Or do you think it could be something more serious?