Am I fat?

Having written thoughts on being fat, I should add that I am a size 10 (a size 6 in the USA). Many would think this far from overweight, but that would depend on your environment. In London, I look like I ate every single pie in the supermarket. The women I pass on the street have thighs that don't meet when they walk. Their stomachs look airbrushed flat, and I stare at them enviously while I suck in my tum. When I go out to the country, however, I lose weight. Not in pounds, you understand, but in perception. I feel slim because the women who surround me have a healthy supply of flesh over their bones. So am I really fat? Probably not! Do I feel fat? Silly question!