Is this normal my body changed significantly is there anything wrong?

[isabel]

Okay, so I'm 16 years old, 5'2"-5'3" ish, and 99 pounds. About a year ago, I weighed about the same, and i got fitted for a dress. They took my measurements and they were 32" chest, 25" waist and 32.5" hip. Okay, so this year i got my measurements taken for another clothing thing, and this time my waist was 23.5" and my hips were 35". I'm still the same height and weight, but why did my waist get so small and my hips get so big? I mean, I see a difference, I have this definition of my waist and my hips look fuller, but is this normal? I weigh the same just the measurements changed so drastically in one year I'm just curious if this is normal. No rude answers please