DD was born nearly 10lbs, 99th percentile for weight, and has stayed above the 90th percentile since then. She turned two this spring, and her current weight is 33lbs. Which is around the 95th percentile, and according to the NHS website, makes her very overweight.
I feel incredibly guilty but her diet is healthy and she has normal toddler sized portions. A typical day would be yoghurt with fruit for breakfast, home made soup with bread for lunch, and whatever I’m eating for dinner but a smaller portion (spaghetti bolognaise, omelette, etc)
Meals always include protein, and she only has fruit for dessert. The only time she has sugar etc is birthdays but in small amounts. Only water to drink, or very diluted squash, and milk before bedtime.
She was EBF until 6 months but even at six months she was 99th percentile for weight, on breastmilk alone - the health visitor actually said that she would have thought I was over feeding her if she was formula fed 
For what it’s worth, she doesn’t look overweight, is very active and healthy. AIBU to be worried?