My daughter is 5 mths and i have seen her a handful or more times crying or whining in her sleep. It is only for a few seconds but i dunno what to make of it? Also the other night I had her sleeping in my arms and she was out like a light and all of a sudden she started laughing. So then i would laugh, then she would laugh and so on.

I have came to 2 conclusions, #1- She may be crying/whining because of gas or the need to burp

or #2- She is dreaming ( which i hope not for the crying. Otherwise i would be very concerned what was making her cry in her dreams

And suggestions or anyone elses babies do this?