Yeah, it's just her body adjusting to the new hormone levels. Our 2nd baby is 2 wks old and my wife's emotions are all over the place. It's almost like flipping on a light switch, one second she's fine and the next... look out!
This is something you'll just have to deal with. Remember what's she's going through and try not to let her mood swings effect your mood (if she starts screaming at you, don't scream back).
It gets better, trust me.
