I am very overweight at the moment and have never weighed this amount. However I know that my weight never actually determines how "fat" I am. I am pregnant and a size 16. I have massive bb's that are an e cup which also contributes to my size. If I told you now what I weigh and I showed you a picture of me, you wouldnt believe it because numbers dont seem to add up. I try and go by measurements and proportions to make a judgement on how I am feeling about my body.

When I was working at the gym, training twice a day some days, I weighed at my absolute lowest 67Kgs. I had a toned stomach, great toned arms, legs, awesome waist, still had boobs (but they were smaller) and was a size 10.
SO a size 10 at 67Kgs is the lowest I have been (and I was hot hot hot! I can say that because I felt it)!

Weight is made up of so many different things and factors. BMI is not a realistic judgement on whehter or not you are healthy.