I have never been a fan of BMI measures simply because it doesn't factor in a lot of very important variables. BMI is simply saying if you are 6 feet you should weigh x. If you weigh over y you are obese.
Athletes have more than the average amount of muscle mass and therefore BMI calculates them as "at risk" even though they are in top physical shape.
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I'm not saying I wasn't overweight (In fact I am saying the opposite and I still have more to go). But there is def a big diff between obesity and over weight. FWIW I would not be scared/embarrased to tell people on an internet forum I was obese, seriously.