I think I tend to do this with anything and everything - from how I look to what I write, to what I sew. It's really a habit for me now.
But as insecure as I can be about my work (quilts, stories, etc), there's always that part of me that loves it anyway. Like it's my kid. Yeah, I know it's got flaws and it's certainly not perfect. But the quirks make it lovable.
Maybe that's why I find it painful (but good!) when people critique my writing. I'm like "ouch, don't make fun of my baby!"