Your mom is named Addison but a lady named Danielle dressed up as a nurse and grabbed a nurse badge that fell, the nurse walks past Danielle but Danielle says something, the nurse turns back and Danielle says

Danielle: "uh nothing"

The nurse then nodded and walked away. Danielle then got dressed and suddenly a intercom says

Intercom: "Can Meredith Grey come to the ICU please?"

Danielle looked at her fake badge and ran to the ICU and went in

Doctor: "Hey, Meredith. Can you watch Addison's baby please?" He says

Danielle nodded and looked at the baby which was her baby that was blind but she then grabbed Addison's baby(you) and ran