Don't know whether there is any one like my DS. He is 5mo now. Recently he always wakes up at night trying very hard to poop/push gas out of his tummy, and crying. There are two/three nights when he didn't do that, which he actually can sleep through the night. This is really annoying as it's difficult to settle, unless I helped him release some gas, which takes ages. I've tried my best to burp him after every feed.... I don't know what to do. Is it normal for a 5mo?