I think the best thing to do would be to measure your body fat percentage, which, correct me physio buffs if I'm wrong but, for a "normal" female should be between 20% and 30%? Less for athletes. If it's in the normal range then problem solved and ignore your BMI (within reason) and accept that you are one of those people who weighs a lot more than you'd think to look at them, but if this is still high then maybe you could do with losing a little more weight for your health's sake. I think the thing about "looking obese" can be really misleading because people these days are so much bigger built in every way than, say, 50 years ago, that people get used to seeing bigger individuals and gradually change their perception of what "overweight" looks like. I read a study in New Scientist which said that a really high proportion of people looking at photos of individuals who were medically obese classified them as looking "normal" in terms of their weight so...not saying you are btw, just an interesting point I thought!