"Look at how you are shouting loudly" or "Think carefully about why you are shouting loudly". Micah is mocking the people, trying to make them think about why God is dealing with them in this way.
"You have a king, but he is useless to you. All your wise people are still alive, but they have nothing wise to say to you. This is why you are weeping loudly like a woman who is giving birth to a baby".
Possible meanings are: Micah is describing the pain itself, that it is as strong as the pain a woman in labor feels or he is describing the manner in which the pain seizes the people, that it seizes them totally and uncontrollably, the way a woman in labor can think only about her pain and delivering her baby.