How distressing for you and her. When I first starting to leave Tobey I set him a "challenge" by hiding his favourite treats in his toys so he had to hunt for them while I was gone. It has now got to the stage where he sees me picking up my keys and sits waiting for me to go so he can have some fun! I always use the same phrase "Be good Tobey - I'll be back soon" . I guess it also helps that he has the cat for company and we let them have the run of the stairs, hallway, landing and kitchen while we are out.

Your baby could get confused if she can still see you when you are trying to get her to adjust to being apart from you.

However, this is just from personal experience there are others here who have much more expertise - good luck!