I agree that questionnaire would be good at the 3-4 month mark; that's when you know it's not because of your baby not sleeping or just getting used to being a Mummy, that's when you know it's something else.

If it was earlier, I was worried people would think me a bad mother (although at the 6-week check I was told this was "normal" after plucking up the courage to mention to my GP I was emotionally numb and just felt like I was babysitting DS) for not doing the whole bonding thing, for forgetting my son's early days and for giving him such a crap start to life. I've forced the mask of perfect motherhood off, and it has helped, but I still feel like I'm not good enough most days.