My 2 year old was going up the stairs with DS on her way to bed when DS shut the top stair gate on her. This had the effect of pushing her backwards down the stairs. She cried loads and seemed to be sleepy afterwards although this might have been because she was tired anyway as it was getting late. In a panic, I rang 111 who advised to go to the children’s hospital. Currently sat there now watching her jump around in the soft play area. She seems absolutely fine and i’m so tempted to take her home but there is the thought that what if something terrible happens. I would never forgive myself if she did have an injury. If it had happened at any other time, I would have monitored her before calling. Can head injuries manifest later or should I take her home?