I'm just starting my journey so I can't speak from experience yet, but I will relate what my doctor told me. She is very supportive of my weight loss. However, she says that I actually do have a bigger frame (you know that excuse we all like to use? It's really true in my case! LOL) and that I may never see myself in the "healthy" range because that might not be healthy for me. Only time will tell, she said. If I have to eat three meals of lettuce and spend three hours in the gym every day to be a certain weight, then that's not the weight I'm meant to be. I'll eat sensibly and exercise sensibly and I'll take what my body will give me.
That's the theory anyway. I'm so fresh and new and all
About the negative comment... Until I made the decision to lose weight I was threatened by other people's weight loss. I would make those comments to other people about how so-and-so looks too skinny and should maybe eat some bread now and then. It's terrible, but true. I was insecure and that's how i dealt with it. If I could negate someone else's success then that made me feel better about not doing anything about my own weight, know what I mean?
Even if the woman who said those things isn't overweight herself, she may have poor self-imagine and still be cutting you down like that. I think you look FA-BU-LOUS, girl! Way to go!