I had to stop and think when both my CDC AND my husband told me I had lost enough weight, and any more would make me look "too thin" - even though to be at the top end of a healthy BMI it would mean losing another stone.
I have been "GI healthy eating" since then, (and lost another 8lbs slowly) I think there are times when you have to listen to people who really care about you. Others can say what they like, it's usually either jealousy or being uncomfortable with change.
Listen to your body, it will tell you when it's time to stop.
Ann x