A sibling's story from 3 to 7 years of age

At this early age I do not recall my mum being unwell. That began after my little sister was born (I was 3 years old). I remember mum coming home from hospital with a baby and that the baby cried a lot - actually, she seemed to cry all the time. I remember trying to help comfort her by rocking the cradle/pram and that she wouldn't stop. I also remember rocking it so much that she fell out and that I got into a lot of trouble (I wasn't smacked or anything like that though).