Deep breaths Lindsey. Scott is stressed out as well and everyone expresses themselves in a different way.
Maybe you are hovering over Layla more than need be? I suggest you take some time for yourself...and some time for your relationship with Scott. In time, this will all settle...when you are more comfortable with Layla's care.
As for her crying, I found that when my Maxwell cried during the time he was unable to stand up or move it was because he was hungry, thirsty or had to go to the bathroom. He could do nothing for himself. It was an difficult time but I just had to do trial and error. Usually if I went through all of the possibilities with him he would settle down after that. You also don't want her to become so dependent on attention that she demands it constantly. Check her basic needs...if she cries for no reason I really think you might need to let her cry and let her become a bit more independent. Only you will be able to assess if this crying is physical...or manipulative....they are good at that you know.
Does not make them bad...just smart.