I totally am, and I hate it, but I don't know how to change! I am that girl that will look in the mirror and notice every imperfection and dwell on it.
This morning I had my pre-conception appointment, and I was talking with my OB/GYN and he said "You're the perfect candidate to get pregnant--you're young, you're thin..." and I just stopped listening after that and all I could think was "OMG he said I'm thin...he thinks I am thin!" because I would NEVER refer to myself as thin.
I wish I could be more comfortable in my own skin, and notice the good rather than the bad. Are you your own worst critic?