I know I'm a terrible mum... Was supporting DD's neck and then suddenly, absolutely without realising it left her neck to pick up something and her head flopped backwards. Can't understand how I could do that... Shall I call the hospital now? She didn't cry. I put her on her changing mat on her tummy to see if she still can raise her head. Seems fine but I'm worried to death. Has anyone experienced this? What kind of damage could this cause?