When I was a "Non-mom," I’d read stories of a new parent charged with shaking her two-week old baby resulting in its death and be absolutely shocked and heartbroken. Then when I had a two-week of my own, I suddenly had a much better understanding of how other mothers could reach that breaking point.
Don’t worry, I would never harm my own; but between my in-experience and severe sleep deprivation, I was having a tough time keeping my composure. Guilt from not being cool and collected as I thought I should be would slowly chip away. It was calming to hear other, more experienced moms express that same feeling. It seems to be another one of those things that people never talk about when it comes to parenting.