I need help. My 7 week old cries so hard after each feeding. I've fed him until he's satisfied and he cries hysterically on and off for about 1 hour while I'm burping him. I've also tried feeding for 10 minutes, pulling him off to burp before continuing to feed. He just has so mauch gas after each feeding and he cries the entire time until all his gas bubbles are out of his tummy - is this normal? Am I doing something wrong?