Yes, when I was little I used to be really afraid and cry if I didn't see my mother at the gate after school. I recently remembered something I had forgotten about.With seperation anxiety it could be anxiety for being away from you parents, sleeping at places without your parents ect. I had seperation anxiety as a child and there are some research pointing towards the risk of developing panic anxiety is 3.times higher if one had separation anxiety as a child. Panic anxiety has been seen as a component in development depersonalization.
One day my parents were late because they had to go to the bank. I remember me walking along the road in the direction of my house crying and looking around at vehicles passing by. One thing that I remember is for a moment there I really considered jumping in front of one of moving vehicles. After a while someone from school who lived near our house saw me walking and dropped me at my house.
This memory seems to make more sense now because now that I know I'm autistic.