I don't think I mentioned that currently I am not happy with my weight. I have been very worried as I lost weight recently. I am happiest when I am at least 3 kg heavier than what I am at currently. Which puts me in 'healthy' BMI not 'underweight'.
I also do see where you are coming from with being big framed. You probably have less fat % than a lot of thinner small framed people but don't 'look super thin' because your frame is different. I get that. And I am sorry that people judge you. I hope I don't come across that way and I'm sorry if I do.
One of my besties is around the same height as me but a totally different build. She runs rings around me and I never ever thought she looked unhealthy, overweight or thought she needs to lose bulk. I admire her for HER and think she looks amazing.
I think your confidence in yourself is amazing - and I wish the judgement and perception of 'numbers' was a different.
Hope I make sense.