The 31-year-old star - who welcomed daughter Luna with husband John Legend, 38, in April 2016 - shared screenshots of a number of angry messages from online commentators slamming her parenting abilities and she called them "worst".
The comments included: "Golden rule of dressing babies is however many layers you are wearing plus an extra one. Common sense really," and "That baby never shows emotions, she never smiles or cries. It's weird."
Chrissy wrote, "Imagine being this miserable. We are fine, thanks. Some people are just hell bent on being the worst.